• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of a germanium spin MOSFET

Research Project

Project/Area Number 19H05616
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Review Section Broad Section C
Research InstitutionOsaka University

Principal Investigator

Hamaya Kohei  大阪大学, 大学院基礎工学研究科, 教授 (90401281)

Co-Investigator(Kenkyū-buntansha) 澤野 憲太郎  東京都市大学, 理工学部, 教授 (90409376)
山本 圭介  九州大学, 総合理工学研究院, 准教授 (20706387)
Project Period (FY) 2019-06-26 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥202,150,000 (Direct Cost: ¥155,500,000、Indirect Cost: ¥46,650,000)
Fiscal Year 2023: ¥26,780,000 (Direct Cost: ¥20,600,000、Indirect Cost: ¥6,180,000)
Fiscal Year 2022: ¥29,380,000 (Direct Cost: ¥22,600,000、Indirect Cost: ¥6,780,000)
Fiscal Year 2021: ¥32,760,000 (Direct Cost: ¥25,200,000、Indirect Cost: ¥7,560,000)
Fiscal Year 2020: ¥43,680,000 (Direct Cost: ¥33,600,000、Indirect Cost: ¥10,080,000)
Fiscal Year 2019: ¥69,550,000 (Direct Cost: ¥53,500,000、Indirect Cost: ¥16,050,000)
Keywordsゲルマニウム / スピン注入 / スピンMOSFET / スピン伝導 / 半導体スピントロニクス / トランジスタ / ホイスラー合金 / 歪みシリコンゲルマニウム / 半導体スピントロにクス
Outline of Research at the Start

本提案では,これまで研究代表者と分担者が約10年間にわたって取り組んできた次世代半導体ゲルマニウム(Ge)に関する独自のスピントロニクス基盤技術をデバイス応用レベルへと発展・融合させ,シリコン(Si)プラットフォーム上で室温・低電圧動作するGeスピン電界効果トランジスタ(MOSFET)を実証する.具体的には,コバルト(Co)系強磁性合金を用いた世界最高レベルの低接合抵抗スピン注入・検出技術を更に高度化し,種々のスピン緩和機構を抑制した独自のGeチャネル技術とスピンMOSFET専用のゲート酸化物構造の低温形成技術を開発し,低電圧動作するスイッチとしての役割を担保した不揮発メモリ動作を実現する.

Outline of Final Research Achievements

The purpose of this project is to demonstrate Ge spin MOSFETs on a Si platform by integrating the "spin injection into semiconductors technology" developed by a representative spintronics researcher and the "Ge channel formation technology" and "low-temperature gate stack structure fabrication technology" developed by co-researchers who are semiconductor researchers. We have established the formation technology of ultra-high quality ferromagnetic alloy/Ge heterointerface, and dramatically improved the performance of non-volatile memory operation in semiconductor devices compared to conventional devices. The effectiveness of applying strain to the semiconductor channels was also clarified even at room temperature. Finally, we were able to achieve results such as spin injection into quantum wells and demonstration of spin MOSFETs.

Academic Significance and Societal Importance of the Research Achievements

AI技術の普及が進み,全消費電力に占める半導体デバイスの消費電力の割合が増大し始めていることから,将来の地球環境の問題にまで発展する懸念がある.本研究は,その半導体の低消費電力化技術として期待され,磁石のメモリ機能を利用した新しい半導体デバイスを開発する「半導体スピントロニクス」という分野の先端研究である。SiプラットフォームでのGeスピントランジスタの基本技術・基本学理が確立されつつあり,今後は「高性能化」に向けた更なる研究が必要である.

Assessment Rating
Ex-post Assessment Comments (Rating)

A-:  In light of the aim of introducing the research area into the research categories, expected outcomes of research have been produced on the whole though the progress in a part of the research has been delayed.

Assessment Rating
Interim Assessment Comments (Rating)

A-: In light of the aim of introducing the research area into the research categories, the expected progress in research has been made on the whole though a part of it has been delayed.

Report

(11 results)
  • 2024 Ex-post Assessment (Comments) ( PDF )
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Abstract (Interim Assessment) ( PDF )   Annual Research Report   Interim Assessment (Comments) ( PDF )
  • 2020 Annual Research Report
  • 2019 Abstract ( PDF )   Comments on the Screening Results ( PDF )   Annual Research Report
  • Research Products

    (244 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (6 results) Journal Article (64 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 64 results,  Open Access: 16 results) Presentation (173 results) (of which Int'l Joint Research: 80 results,  Invited: 23 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] ヨーク大学(英国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] IMEC(ベルギー)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ヨーク大学(英国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] IMEC(ベルギー)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University of York(英国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of York(英国)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Effect of Sn doping on low-temperature growth of Ge epilayers on half-metallic Co2FeSi2024

    • Author(s)
      Yamada Michihiro、Kusumoto Shuhei、Yamada Atsuya、Sawano Kentarou、Hamaya Kohei
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 171 Pages: 107987-107987

    • DOI

      10.1016/j.mssp.2023.107987

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Growth of all-epitaxial Co2MnSi/Ge/Co2MnSi vertical spin-valve structures on Si2024

    • Author(s)
      Yamada Atsuya、Yamada Michihiro、Kusumoto Shuhei、do Nascimento Julio A.、Murrill Connor、Yamada Shinya、Sawano Kentarou、Lazarov Vlado K.、Hamaya Kohei
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 173 Pages: 108140-108140

    • DOI

      10.1016/j.mssp.2024.108140

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Al-Ge-paste-induced liquid phase epitaxy of Si-rich SiGe(111) for epitaxial Co-based Heusleralloys2024

    • Author(s)
      Michihiro Yamada, Shota Suzuki, Ai I. Osakae, Kazuaki Sumi, Takahiro Inoue, Azusa N. Hattori, Shinya Yamada, Kentarou Sawano, Marwan Dhamrin, Kohei Hamaya
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 174 Pages: 108232-108232

    • DOI

      10.1016/j.mssp.2024.108232

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Local strain distribution analysis in strained SiGe spintronics devices2024

    • Author(s)
      Onabe Tomoki、Wu Zhendong、Tohei Tetsuya、Hayashi Yusuke、Sumitani Kazushi、Imai Yasuhiko、Kimura Shigeru、Naito Takahiro、Hamaya Kohei、Sakai Akira
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 63 Issue: 2 Pages: 02SP61-02SP61

    • DOI

      10.35848/1347-4065/ad18ce

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Strain-induced specific orbital control in a Heusler alloy-based interfacial multiferroics2024

    • Author(s)
      Okabayashi Jun、Usami Takamasa、Mahfudh Yatmeidhy Amran、Murakami Yuichi、Shiratsuchi Yu、Nakatani Ryoichi、Gohda Yoshihiro、Hamaya Kohei
    • Journal Title

      NPG Asia Materials

      Volume: 16 Issue: 1 Pages: 3-3

    • DOI

      10.1038/s41427-023-00524-6

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Enhancement of room temperature electroluminescence from strained SiGe/Ge(111) multiple quantum wells light emitting diodes2024

    • Author(s)
      Shuya Kikuoka, Rena Kanesawa, Michihiro Yamada, Kohei Hamaya, Kentarou Sawano
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 176 Pages: 108299-108299

    • DOI

      10.1016/j.mssp.2024.108299

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Fabrication of crack-free strained SiGe/Ge multiple quantum wells on Ge-on-Si(111) by the patterning method2024

    • Author(s)
      R. Kanesawa, S. Kikuoka, Y. Shibahara, Y. Wagatsuma, M. Yamada, K. Hamaya and K. Sawano
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 176 Pages: 108300-108300

    • DOI

      10.1016/j.mssp.2024.108300

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Development of Ge Isotropic Wet Etching Solution and its Application to High Quality Ge-on-Insulator Fabrication through the Etchback Method2024

    • Author(s)
      Shimizu Noboru、Wang Dong、Nakashima Hiroshi、Yamamoto Keisuke
    • Journal Title

      ECS Journal of Solid State Science and Technology

      Volume: 13 Issue: 4 Pages: 044001-044001

    • DOI

      10.1149/2162-8777/ad384b

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ge-on-insulator fabrication based on Ge-on-nothing technology2024

    • Author(s)
      Yamamoto Keisuke、Wang Dong、Loo Roger、Porret Clement、Cho Jinyoun、Dessein Kristof、Depauw Valerie
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 63 Issue: 4 Pages: 04SP32-04SP32

    • DOI

      10.35848/1347-4065/ad2d07

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Isotropic Spin Hall Effect in an Epitaxial Ferromagnet2023

    • Author(s)
      Soya Nozomi、Yamada Michihiro、Hamaya Kohei、Ando Kazuya
    • Journal Title

      Physical Review Letters

      Volume: 131 Issue: 7 Pages: 076702-076702

    • DOI

      10.1103/physrevlett.131.076702

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Half‐Metallic Heusler Alloy/GaN Heterostructure for Semiconductor Spintronics Devices2023

    • Author(s)
      Yamada Shinya、Kato Masatoshi、Ichikawa Shuhei、Yamada Michihiro、Naito Takahiro、Fujiwara Yasufumi、Hamaya Kohei
    • Journal Title

      Advanced Electronic Materials

      Volume: 9 Issue: 7 Pages: 2300045-2300045

    • DOI

      10.1002/aelm.202300045

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Efficient Electrical Manipulation of the Magnetization Process in an Epitaxially Controlled Co2FeSi/BaTiO Multiferroic Interface2023

    • Author(s)
      Hu Shaojie、Yamada Shinya、Chang Po-Chun、Lin Wen-Chin、Hamaya Kohei、Kimura Takashi
    • Journal Title

      Physical Review Applied

      Volume: 20 Issue: 3 Pages: 034029-034029

    • DOI

      10.1103/physrevapplied.20.034029

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dzyaloshinskii-Moriya interaction at epitaxial ferromagnet/semiconductor interface2023

    • Author(s)
      Kimura Shuto、Yamada Michihiro、Okuno Takumi、Sawano Kentarou、Hamaya Kohei、Ando Kazuya
    • Journal Title

      Physical Review B

      Volume: 108 Issue: 9 Pages: 094441-094441

    • DOI

      10.1103/physrevb.108.094441

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Metastable Co3Mn/Fe/Pb(Mg1/3Nb2/3)O3-PbTiO3 multiferroic heterostructures2023

    • Author(s)
      Murakami Y.、Usami T.、Watarai R.、Shiratsuchi Y.、Kanashima T.、Nakatani R.、Gohda Y.、Hamaya K.
    • Journal Title

      Journal of Applied Physics

      Volume: 134 Issue: 22 Pages: 224101-224101

    • DOI

      10.1063/5.0180644

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electrical properties of a low-temperature fabricated Ge-based top-gate MOSFET structure with epitaxial ferromagnetic Heusler-alloy Schottky-tunnel source and drain2023

    • Author(s)
      Yamamoto Keisuke、Matsuo Takuro、Yamada Michihiro、Wagatsuma Youya、Sawano Kentaro、Hamaya Kohei
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 167 Pages: 107763-107763

    • DOI

      10.1016/j.mssp.2023.107763

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication and characterization of germanium n-MOS and n-MOSFET with thermally oxidized yttrium gate insulator: Formation of underlying germanium oxide and its electrical characteristics2023

    • Author(s)
      Wen Wei-Chen、Wang Dong、Nakashima Hiroshi、Yamamoto Keisuke
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 162 Pages: 107504-107504

    • DOI

      10.1016/j.mssp.2023.107504

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Significant reduction of crack propagation in the strained SiGe/Ge(111) induced by the local growth on the depth-controlled area patterning2022

    • Author(s)
      Wagatsuma Youya、Kanesawa Rena、Alam Md. Mahfuz、Okada Kazuya、Inoue Takahiro、Yamada Michihiro、Hamaya Kohei、Sawano Kentarou
    • Journal Title

      Applied Physics Express

      Volume: 16 Issue: 1 Pages: 015502-015502

    • DOI

      10.35848/1882-0786/aca751

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Giant converse magnetoelectric effect in a multiferroic heterostructure with polycrystalline Co2FeSi2022

    • Author(s)
      Shumpei Fujii, Takamasa Usami, Yu Shiratsuchi, Adam M. Kerrigan, Amran Mahfudh Yatmeidhy, Shinya Yamada, Takeshi Kanashima, Ryoichi Nakatani, Vlado K. Lazarov, Tamio Oguchi, Yoshihiro Gohda, and Kohei Hamaya
    • Journal Title

      NPG Asia Materials

      Volume: 14 Issue: 1 Pages: 43-43

    • DOI

      10.1038/s41427-022-00389-1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of Strain on Room-Temperature Spin Transport in Si0.1Ge0.92022

    • Author(s)
      Naito T.、Yamada M.、Wagatsuma Y.、Sawano K.、Hamaya K.
    • Journal Title

      Physical Review Applied

      Volume: 18 Issue: 2 Pages: 024005-024005

    • DOI

      10.1103/physrevapplied.18.024005

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Semiconductor spintronics with Co2-Heusler compounds2022

    • Author(s)
      Hamaya Kohei、Yamada Michihiro
    • Journal Title

      MRS Bulletin

      Volume: 47 Issue: 6 Pages: 584-592

    • DOI

      10.1557/s43577-022-00351-0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Significant effect of interfacial spin moments in ferromagnet-semiconductor heterojunctions on spin transport in a semiconductor2022

    • Author(s)
      Naito T.、Nishimura R.、Yamada M.、Masago A.、Shiratsuchi Y.、Wagatsuma Y.、Sawano K.、Nakatani R.、Oguchi T.、Hamaya K.
    • Journal Title

      Physical Review B

      Volume: 105 Issue: 19 Pages: 195308-195308

    • DOI

      10.1103/physrevb.105.195308

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Epitaxial Mn2VAl films with L21-ordered structure for all-Heusler stacks2022

    • Author(s)
      Yamada Shinya、Kudo Kohei、Sadakari Ryosuke、Hamaya Kohei
    • Journal Title

      Journal of Magnetism and Magnetic Materials

      Volume: 561 Pages: 169644-169644

    • DOI

      10.1016/j.jmmm.2022.169644

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Strain Engineering of Heteroepitaxial SiGe/Ge on Si with Various Crystal Orientations2022

    • Author(s)
      Alam Md. Mahfuz、Wagatsuma Youya、Okada Kazuya、Yamada Michihiro、Hamaya Kohei、Sawano Kentarou
    • Journal Title

      ECS Transactions

      Volume: 109 Issue: 4 Pages: 197-204

    • DOI

      10.1149/10904.0197ecst

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication of Thick SiGe/Ge Multiple Quantum Wells on Ge-on-Si and Their Optical Properties2022

    • Author(s)
      Kanesawa Rena、Wagatsuma Youya、Kikuoka Shuya、Sugiura Yuwa、Sawano Kentarou
    • Journal Title

      ECS Transactions

      Volume: 109 Issue: 4 Pages: 289-295

    • DOI

      10.1149/10904.0289ecst

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication of branch-like bridges based on Ge-on-Si (110) and observation of resonant light emission2022

    • Author(s)
      Takahiro Inoue, Youya Wagatsuma, Reo Ikegaya, Ayaka Odashima, Masaki Nagao, Kentarou Sawano
    • Journal Title

      ECS Transactions

      Volume: 109 Issue: 4 Pages: 297-302

    • DOI

      10.1149/10904.0297ecst

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Strong room-temperature EL emission from Ge-on-Si (111) diodes2022

    • Author(s)
      Sugiura Yuwa、Sasaki Masashi、Wagatsuma Youya、Yamada Koudai、Hoshi Yusuke、Yamada Michihiro、Hamaya Kohei、Sawano Kentarou
    • Journal Title

      Journal of Crystal Growth

      Volume: 594 Pages: 126766-126766

    • DOI

      10.1016/j.jcrysgro.2022.126766

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Fabrication of SiGe/Ge microbridges based on Ge-on-Si(110) and observation of resonant light emission2022

    • Author(s)
      T. Inoue, Y. Wagatsuma, R. Ikegaya, K. Okada, K. Sawano
    • Journal Title

      Journal of Crystal Growth

      Volume: 590 Pages: 126682-126682

    • DOI

      10.1016/j.jcrysgro.2022.126682

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Temperature dependence of two-terminal local magnetoresistance in Co-based Heusler alloy/Ge lateral spin-valve devices2022

    • Author(s)
      Yamada Michihiro、Naito Takahiro、Sumi Kazuaki、Sawano Kentarou、Hamaya Kohei
    • Journal Title

      IEEE Transactions on Magnetics

      Volume: - Issue: 8 Pages: 1-4

    • DOI

      10.1109/tmag.2022.3145393

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mechanism of crack formation in strained SiGe(111) layers2022

    • Author(s)
      Wagatsuma Youya、Mahfuz Alam Md.、Okada Kazuya、Kanesawa Rena、Yamada Michihiro、Hamaya Kohei、Sawano Kentarou
    • Journal Title

      Journal of Crystal Growth

      Volume: - Pages: 126672-126672

    • DOI

      10.1016/j.jcrysgro.2022.126672

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental extraction of donor-driven spin relaxation in n-type nondegenerate germanium2021

    • Author(s)
      M. Yamada, T. Ueno, T. Naito, K. Sawano, and K. Hamaya
    • Journal Title

      Physical Review B

      Volume: 104 Issue: 11 Pages: 115301-106

    • DOI

      10.1103/physrevb.104.115301

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetoresistance ratio of more than 1% at room temperature in germanium vertical spin-valve devices with Co2FeSi2021

    • Author(s)
      Yamada A.、Yamada M.、Honda M.、Yamada S.、Sawano K.、Hamaya K.
    • Journal Title

      Applied Physics Letters

      Volume: 119 Issue: 19 Pages: 192404-192404

    • DOI

      10.1063/5.0061504

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Substrate dependent reduction of Gilbert damping in annealed Heusler alloy thin films grown on group IV semiconductors2021

    • Author(s)
      Love C. J.、Kuerbanjiang B.、Kerrigan A.、Yamada S.、Hamaya K.、van der Laan G.、Lazarov V. K.、Cavill S. A.
    • Journal Title

      Applied Physics Letters

      Volume: 119 Issue: 17

    • DOI

      10.1063/5.0060213

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 8.Room-temperature two-terminal magnetoresistance ratio reaching 0.1 % in semiconductor-based lateral devices with L21-ordered Co2MnSi2021

    • Author(s)
      K. Kudo, M. Yamada, S. Honda, Y. Wagatsuma, S. Yamada, K. Sawano, and K. Hamaya
    • Journal Title

      Applied Physics Letters

      Volume: 118 Issue: 16 Pages: 162404-162404

    • DOI

      10.1063/5.0045233

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of Fe atomic layers at the ferromagnet-semiconductor interface on temperature-dependent spin transport in semiconductors2021

    • Author(s)
      Yamada M.、Shiratsuchi Y.、Kambe H.、Kudo K.、Yamada S.、Sawano K.、Nakatani R.、Hamaya K.
    • Journal Title

      Journal of Applied Physics

      Volume: 129 Issue: 18 Pages: 183901-183901

    • DOI

      10.1063/5.0048321

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental estimation of the spin diffusion length in undoped p-Ge on Fe3Si using vertical spin-valve devices2021

    • Author(s)
      Yamada A.、Yamada M.、Shiihara T.、Ikawa M.、Yamada S.、Hamaya K.
    • Journal Title

      Journal of Applied Physics

      Volume: 129 Issue: 1

    • DOI

      10.1063/5.0035323

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhanced electroluminescence from Ge-on-Si by precise in-situ doping and post-annealing2021

    • Author(s)
      Yamada Kodai、Wagatsuma Youya、Okada Kazuya、Hoshi Yusuke、Sawano Kentarou
    • Journal Title

      Applied Physics Express

      Volume: 14 Issue: 4 Pages: 045504-045504

    • DOI

      10.35848/1882-0786/abf0df

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] (Invited) Fabrication of Ge-on-Insulator By Epitaxial Growth and Ion-Implanted Exfoliation for Electronics and Optoelectronics Applications2021

    • Author(s)
      Yamamoto Keisuke、Wang Dong、Nakashima Hiroshi
    • Journal Title

      ECS Transactions

      Volume: 104 Issue: 4 Pages: 157-166

    • DOI

      10.1149/10404.0157ecst

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] (Invited) Schottky Barrier Height Control at Metal/Ge Interface by Insertion of Nitrogen Contained Amorphous Layer2021

    • Author(s)
      Yamamoto Keisuke、Wang Dong、Nakashima Hiroshi
    • Journal Title

      ECS Transactions

      Volume: 102 Issue: 4 Pages: 63-71

    • DOI

      10.1149/10204.0063ecst

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Positive linear magnetoresistance effect in disordered L21B-type Mn2CoAl epitaxial films2021

    • Author(s)
      K. Kudo, A. Masago, S. Yamada, L. S. R. Kumara, H. Tajiri, Y. Sakuraba, K. Hono, and K. Hamaya
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 10 Pages: 104427-104427

    • DOI

      10.1103/physrevb.103.104427

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A drastic increase in critical thickness for strained SiGe by growth on mesa-patterned Ge-on-Si2021

    • Author(s)
      Wagatsuma Youya、Alam Md. Mahfuz、Okada Kazuya、Yamada Michihiro、Hamaya Kohei、Sawano Kentarou
    • Journal Title

      Applied Physics Express

      Volume: 14 Issue: 2 Pages: 025502-025502

    • DOI

      10.35848/1882-0786/abd4c5

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spin injection through energy-band symmetry matching with high spin polarization in atomically controlled ferromagnet/ferromagnet/semiconductor structures2020

    • Author(s)
      Yamada Michihiro、Kuroda Fumiaki、Tsukahara Makoto、Yamada Shinya、Fukushima Tetsuya、Sawano Kentarou、Oguchi Tamio、Hamaya Kohei
    • Journal Title

      NPG Asia Materials

      Volume: 12 Issue: 1 Pages: 47-47

    • DOI

      10.1038/s41427-020-0228-5

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Suppression of Donor-Driven Spin Relaxation in Strained Si0.1Ge0.92020

    • Author(s)
      Naito T.、Yamada M.、Yamada S.、Sawano K.、Hamaya K.
    • Journal Title

      Physical Review Applied

      Volume: 13 Issue: 5

    • DOI

      10.1103/physrevapplied.13.054025

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhancement of the spin Hall angle by interdiffusion of atoms in Co2FeAl0.5Si0.5/n-Ge heterostructures2020

    • Author(s)
      S. Kaneta, M. Yamada, S. Sato, S. Arai, L. D. Anh, K. Hamaya, and S. Ohya
    • Journal Title

      Phys. Rev. Applied

      Volume: 14 Issue: 2

    • DOI

      10.1103/physrevapplied.14.024096

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Control of thermoelectric properties in Mn-substituted Fe2TiSi epilayers2020

    • Author(s)
      Y. Shimanuki, S. Yamada, A. Masago, T. Ishibe, K. Kudo, Y. Nakamura, and K. Hamaya
    • Journal Title

      Physical Review B

      Volume: 102 Issue: 5 Pages: 054203-054203

    • DOI

      10.1103/physrevb.102.054203

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crack formation in strained SiGe grown on Ge-on-Si (111) and its suppression by patterning substrates2020

    • Author(s)
      Wagatsuma Youya、Alam Md Mahfuz、Okada Kazuya、Hoshi Yusuke、Yamada Michihiro、Hamaya Kohei、Sawano Kentarou
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 117 Pages: 105153-105153

    • DOI

      10.1016/j.mssp.2020.105153

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] (Invited) Strain Engineering of Si/Ge Heterostructures on Ge-on-Si Platform2020

    • Author(s)
      Sawano Kentarou、Youya Wagatsuma、Alam Md. M、Omata Kaisei、Niikura Kenta、Shibata Shougo、Hoshi Yusuke、Yamada Michihiro、Hamaya Kohei
    • Journal Title

      ECS Transactions

      Volume: 98 Issue: 5 Pages: 267-276

    • DOI

      10.1149/09805.0267ecst

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Increased Critical Thickness for Strained SiGe on Ge-on-Si(111)2020

    • Author(s)
      Youya Wagatsuma、Alam Md. M、Okada Kazuya、Hoshi Yusuke、Yamada Michihiro、Hamaya Kohei、Sawano Kentarou
    • Journal Title

      ECS Transactions

      Volume: 98 Issue: 5 Pages: 499-503

    • DOI

      10.1149/09805.0499ecst

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Strong Room-Temperature Electroluminescence from Ge-on-Si by Precise in-situ Doping Control2020

    • Author(s)
      Yamada Kodai、Hoshi Yusuke、Sawano Kentarou
    • Journal Title

      ECS Transactions

      Volume: 98 Issue: 5 Pages: 513-518

    • DOI

      10.1149/09805.0513ecst

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Interface trap and border trap characterization for Al2O3/GeOx/Ge gate stacks and influence of these traps on mobility of Ge p-MOSFET2020

    • Author(s)
      Wei-Chen Wen, Yuta Nagatomi, Hiroshi Akamine, Keisuke Yamamoto, Dong Wang, Hiroshi Nakashima
    • Journal Title

      AIP Advances

      Volume: 10 Issue: 6 Pages: 065119-065119

    • DOI

      10.1063/5.0002100

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] (Invited) Border-Trap Characterization for Ge Gate Stacks with Thin GeOx layer Using Deep-Level Transient Spectroscopy2020

    • Author(s)
      Nakashima Hiroshi、Wen Wei-Chen、Yamamoto Keisuke、Wang Dong
    • Journal Title

      ECS Transactions

      Volume: 98 Issue: 5 Pages: 395-404

    • DOI

      10.1149/09805.0395ecst

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thermoelectric properties of single-phase full-Heusler alloy Fe2TiSi films with D03-type disordering2020

    • Author(s)
      Shimanuki Y.、Kudo K.、Ishibe T.、Masago A.、Yamada S.、Nakamura Y.、Hamaya K.
    • Journal Title

      Journal of Applied Physics

      Volume: 127 Issue: 5 Pages: 055106-055106

    • DOI

      10.1063/1.5141949

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin transport in antimony-doped germanium detected using vertical spin-valve structures2020

    • Author(s)
      T. Shiihara, M. Yamada, M. Honda, A. Yamada, S. Yamada, and K. Hamaya
    • Journal Title

      Appl. Phys. Express

      Volume: 13 Issue: 2 Pages: 023001-023001

    • DOI

      10.35848/1882-0786/ab6ca8

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth of ferromagnetic Co2FeSi films on flexible Ge(111)2020

    • Author(s)
      Yamada Shinya、Higashi Hidenori、Kanashima Takeshi、Hamaya Kohei
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 112 Pages: 104997-104997

    • DOI

      10.1016/j.mssp.2020.104997

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Inverse local magnetoresistance effect up to room temperature in ferromagnet-semiconductor lateral spin-valve devices2020

    • Author(s)
      Naito Takahiro、Yamada Michihiro、Yamada Shinya、Kanashima Takeshi、Sawano Kentarou、Hamaya Kohei
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 113 Pages: 105046-105046

    • DOI

      10.1016/j.mssp.2020.105046

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Germanium pn junctions between ferromagnetic CoFe and Fe3Si layers for spintronic applications2020

    • Author(s)
      Mizuki Honda、Takahiro Shiihara、Michihiro Yamada、Shinya Yamada、Kohei Hamaya
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 116 Pages: 105066-105066

    • DOI

      10.1016/j.mssp.2020.105066

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hole mobility in Strained Si/Relaxed SiGe/Si(110) hetero structures studied by gated Hall measurements2020

    • Author(s)
      Namiuchi Daichi、Onogawa Atsushi、Fujisawa Taisuke、Sano Yuichi、Izumi Daisuke、Yamanaka Junji、Hara Kosuke O.、Sawano Kentarou、Nakagawa Kiyokazu、Arimoto Keisuke
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 113 Pages: 105052-105052

    • DOI

      10.1016/j.mssp.2020.105052

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Enhanced photoluminescence from strained Ge-on-Insulator surface-passivated with hydrogenated amorphous Si2020

    • Author(s)
      Niikura Kenta、Yamahata Natsuki、Hoshi Yusuke、Takamura Tsukasa、Saito Kimihiko、Konagai Makoto、Sawano Kentarou
    • Journal Title

      Materials Science in Semiconductor Processing

      Volume: 115 Pages: 105104-105104

    • DOI

      10.1016/j.mssp.2020.105104

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Critical thickness of strained Si1-xGex on Ge(111) and Ge-on-Si(111)2019

    • Author(s)
      Alam Md. Mahfuz、Wagatsuma Youya、Okada Kazuya、Hoshi Yusuke、Yamada Michihiro、Hamaya Kohei、Sawano Kentarou
    • Journal Title

      Applied Physics Express

      Volume: 12 Issue: 8 Pages: 081005-081005

    • DOI

      10.7567/1882-0786/ab2db8

    • NAID

      210000156582

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Nonmonotonic bias dependence of local spin accumulation signals in ferromagnet/semiconductor lateral spin-valve devices2019

    • Author(s)
      Fujita Y.、Yamada M.、Tsukahara M.、Naito T.、Yamada S.、Sawano K.、Hamaya K.
    • Journal Title

      Physical Review B

      Volume: 100 Issue: 2 Pages: 024431-024431

    • DOI

      10.1103/physrevb.100.024431

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental verification of the origin of positive linear magnetoresistance in CoFe(V1?xMnx)Si Heusler alloys2019

    • Author(s)
      Yamada S.、Kobayashi S.、Masago A.、Kumara L. S. R.、Tajiri H.、Fukushima T.、Abo S.、Sakuraba Y.、Hono K.、Oguchi T.、Hamaya K.
    • Journal Title

      Physical Review B

      Volume: 100 Issue: 19 Pages: 195137-195137

    • DOI

      10.1103/physrevb.100.195137

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Great Differences between Low-Temperature Grown Co2FeSi and Co2MnSi Films on Single-Crystalline Oxides2019

    • Author(s)
      Kudo Kohei、Hamazaki Yasunari、Yamada Shinya、Abo Satoshi、Gohda Yoshihiro、Hamaya Kohei
    • Journal Title

      ACS Applied Electronic Materials

      Volume: 1 Issue: 11 Pages: 2371-2379

    • DOI

      10.1021/acsaelm.9b00546

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Hole mobility enhancement observed in (110)-oriented strained Si2019

    • Author(s)
      Arimoto Keisuke、Utsuyama Naoto、Mitsui Shohei、Satoh Kei、Yamada Takane、Yamanaka Junji、Hara Kosuke O.、Sawano Kentarou、Nakagawa Kiyokazu
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 59 Issue: SG Pages: SGGK06-SGGK06

    • DOI

      10.7567/1347-4065/ab6591

    • NAID

      210000157909

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Border-Trap Characterization for Ge Gate Stacks Using Deep-Level Transient Spectroscopy2019

    • Author(s)
      Hiroshi Nakashima, Wei-Chen Wen, Keisuke Yamamoto, Dong Wang
    • Journal Title

      ECS transactions

      Volume: 92 Issue: 4 Pages: 3-10

    • DOI

      10.1149/09204.0003ecst

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Conduction Type Control of Ge-on-Insulator: Combination of Smart-Cut(TM) and Defect Elimination2019

    • Author(s)
      Keisuke Yamamoto, Kohei Nakae, Hiroshi Akamine, Dong Wang, Hiroshi Nakashima, Md. M Alam, Kentarou Sawano, Zhongying Xue, Miao Zhang, Zengfeng Di
    • Journal Title

      ECS transactions

      Volume: 93 Issue: 1 Pages: 73-77

    • DOI

      10.1149/09301.0073ecst

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Si0.1Ge0.9における室温スピン伝導の歪み効果2024

    • Author(s)
      内藤貴大, 山田道洋, 我妻勇哉, 澤野憲太郎, 浜屋宏平
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 強磁性体/圧電体ヘテロ構造を用いたスピントロニクス技術の研究2024

    • Author(s)
      浜屋宏平
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Co系ホイスラー合金を用いたGaN層への室温スピン注入2024

    • Author(s)
      山田晋也,市川修平,山田道洋,藤原康文,浜屋宏平
    • Organizer
      「スピントロニクス学術研究基盤と連携ネットワーク(Spin-RNJ)」シンポジウム(Spin-RNJ) 2023年度報告会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Giant converse magnetoelectric effect in Co2FeSi/PMN-PT multiferroic heterostructures2023

    • Author(s)
      Takamasa Usami and Kohei Hamaya
    • Organizer
      The 11th Pacific Rim International Conference on Advanced Materials and Processing (PRICM11)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Strain engineering of Si/Ge heterostructures based on Ge virtual substrates2023

    • Author(s)
      Kentarou Sawano
    • Organizer
      E-MRS 2023 Spring Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Thermally oxidized Yttrium Oxide on Germanium for n-MOS Capacitor and Field-Effect Transistor2023

    • Author(s)
      K. Yamamoto, W.-C. Wen, D. Wang, and H. Nakashima
    • Organizer
      244th ECS meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Valley splitting energy in strained Si0.1Ge0.9/Ge-on-Si detected by lateral spin transport measurements2023

    • Author(s)
      K. Kawashima, T. Okada, M. Yamada, T. Naito, Y. Wagatsuma, K. Sawano, and K. Hamaya
    • Organizer
      MRM2023/IUMRS-ICA2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enhancement of spin signals in CoFe/Sn-doped Ge/Co2FeSi vertical spin-valve devices2023

    • Author(s)
      S. Kusumoto, M. Yamada, A. Yamada, K. Sawano, and K. Hamaya
    • Organizer
      MRM2023/IUMRS-ICA2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] An epitaxial multiferroic heterostructure composed of Co2FeSi/V/Pb(Mg1/3Nb2/3)O3-PbTiO3(011)2023

    • Author(s)
      T. Usami, Y. Sanada, S. Yamada, Y. Shiratsuchi, R. Nakatani, and K. Hamaya
    • Organizer
      MRM2023/IUMRS-ICA2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of interfacial magnetism on spin injection/detection efficiency in Ge-based spin devices with Co2FeAl0.5Si0.5/Ge Schottky tunnel junctions2023

    • Author(s)
      M. Yamada, T. Naito, R. Nishimura, A. Masago, Y. Shiratsuchi, Y. Wagatsuma, K. Sawano, R. Nakatani, T. Oguchi, and K. Hamaya
    • Organizer
      MRM2023/IUMRS-ICA2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Local strain distribution analysis in strained SiGe spintronics devices2023

    • Author(s)
      T. Onabe, Z. Wu, T. Tohei, Y. Hayashi, K. Sumitani, Y. Imai, S. Kimura, T. Naito, K. Hamaya, and A. Sakai
    • Organizer
      2023 International Conference on Solid State Devices and Materials (SSDM2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enhancement in Spin Transport Length in Strained n-Si0.1Ge0.9(111)2023

    • Author(s)
      Takahiro Naito, Michihiro Yamada, Youya Wagatsuma, Kentarou Sawano, and Kohei Hamaya
    • Organizer
      ISTDM-ICSI-2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Molecular beam epitaxy growth of ferromagnetic Heusler alloy films on SiGe(111) grown by Al-Ge-paste-induced liquid phase epitaxy,2023

    • Author(s)
      Michihiro Yamada, Kazuaki Sumi, Ai. I. Osaka, Azusa. N. Hattori, Youya Wagatsuma, Kentarou Sawano, Shinya Yamada, Shota Suzuki, Marwan Dhamrin, and Kohei Hamaya
    • Organizer
      ISTDM-ICSI-2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Detection of magnetoresistance effect in all-epitaxial Co2MnSi/Ge/Co2MnSi vertical spin-valve devices on Si(111)2023

    • Author(s)
      Atsuya Yamada, Michihiro Yamada, Shuhei Kusumoto, Youya Wagatsuma, Shinya Yamada, Kentarou Sawano, and Kohei Hamaya
    • Organizer
      ISTDM-ICSI-2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Significant effect of carrier concentration on spin lifetime at low temperatures in strained Si0.1Ge0.92023

    • Author(s)
      K. Kawashima, T. Naito, M. Yamada, T. Okada, Y. Wagatsuma, K. Sawano, and K. Hamaya
    • Organizer
      INTERMAG 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Epitaxial Co2FeSi/LiNbO3 multiferroic heterostructures with a low damping constant2023

    • Author(s)
      Shinya Yamada, Takamasa Usami, Sachio Komori, Sekai Nagata, Yukio Nozaki, Tomoyasu Taniyama, and Kohei Hamaya
    • Organizer
      INTERMAG 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Structural and magnetic properties of CoFe/Sn-doped Ge/Co2FeSi for vertical spin-valve devices on Si2023

    • Author(s)
      Shuhei Kusumoto, Michihiro Yamada, Atsuya Yamada, Youya Wagatsuma, Kentarou Sawano, and Kohei Hamaya
    • Organizer
      INTERMAG 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Growth and magnetoelectric effect of epitaxial Co3Mn films on piezoelectric Pb(Mg1/3Nb2/3)O3-PbTiO3(001)2023

    • Author(s)
      Yuichi Murakami, Takamasa Usami, Yu Shiratsuchi, Yuya Sanada, Shinya Yamada, Ryoichi Nakatani, and Kohei Hamaya
    • Organizer
      INTERMAG 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of Si/Ge microbridges based on Ge-on-Si (110) and effect of bridge length2023

    • Author(s)
      Takahiro Inoue, Youya Wagatsuma, Reo Ikegaya, Ayaka Odashima, Masaki Nagao, Kentarou Sawano
    • Organizer
      The Joint ISTDM-ICSI 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Diode characteristics and room temperature EL emission of strained SiGe/Ge quantum well LEDs2023

    • Author(s)
      Shuya Kikuoka, Youya Wagatsuma, Yuwa Sugiura, Rena Kanesawa, Michihiro Yamada, Kohei Hamaya and Kentarou Sawano
    • Organizer
      The Joint ISTDM-ICSI 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of crack free strained SiGe/Ge multiple quantum wells on Ge on Si(111) by the patterning method2023

    • Author(s)
      R. Kanesawa, Y. Wagatsuma, S. Kikuoka, Y. Sugiura, M. Yamada, K. Hamaya and K. Sawano
    • Organizer
      The Joint ISTDM-ICSI 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of a Ge gate stack using plasma irradiation and low-temperature annealing for Ge applications2023

    • Author(s)
      H. Kuwazuru, D. Wang, K. Yamamoto
    • Organizer
      14th International Workshop on New Group IV Semiconductor Nanoelectronics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Low Temperature (~210 °C) Fabrication of Ge MOS Capacitor using Plasma Oxidation and Oxi-Nitridation for the Interlayer Formation2023

    • Author(s)
      H. Kuwazuru, D. Wang, K. Yamamoto
    • Organizer
      14th International Workshop on New Group IV Semiconductor Nanoelectronics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study on the Performance of Metal S/D Ge n-MOSFET with Recessed Channel Structure2023

    • Author(s)
      H. Kuwazuru, S. Nasu, D. Wang, K. Yamamoto
    • Organizer
      13th International Workshop on New Group IV Semiconductor Nanoelectronics
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 分子線エピタキシー法による磁性ワイル半金属Co2MnGa薄膜の極低温成長2023

    • Author(s)
      長田聖海, 山田晋也, 宇佐見喬政, 山内邦彦, 小口多美夫, 浜屋宏平
    • Organizer
      第47回日本磁気学会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] スピン輸送測定を用いた歪みSi0.1Ge0.9伝導帯 バレー 分裂の推定と低温における不純物散乱の影響2023

    • Author(s)
      岡田拓也,川嶌一彰,山田道洋,内藤貴大, 我妻勇哉,澤野憲太郎,浜屋宏平
    • Organizer
      第47回日本磁気学会学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Low-temperature annealing effect on spin transport in lateral spin valve devices with Co-based Heusler alloys/Ge heterostructures2023

    • Author(s)
      Michihiro Yamada, Naoyuki Sugiyama, Kazuaki Sumi, Kenji Oki, Kentarou Sawano, and Kohei Hamaya
    • Organizer
      第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] リセスチャネル化によるメタルS/D型Ge n-MOSFETの電流駆動力向上(III)2023

    • Author(s)
      鍬釣 一、王 冬、山本 圭介
    • Organizer
      第84回応用物理学会秋季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Effect of carrier concentration on low-temperature spin transport in strained n-Si0.1Ge0.92023

    • Author(s)
      Kazuaki Kawashima, Takahiro Naito, Michihiro Yamada, Takuya Okada, Youya Wagatsuma, Kentarou Sawano, and Kohei Hamaya
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 強磁性ホイスラー合金Co2FeSi上へのGeエピタキシャル成長におけるSn添加の効果2023

    • Author(s)
      楠本修平, 山田道洋, 山田敦也, 我妻勇哉, 澤野憲太郎, 浜屋宏平
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Converse magnetoelectric effect in bcc Co3Mn/PMN-PT(001) multiferroic heterostructures2023

    • Author(s)
      Yuichi Murakami, Takamasa Usami, Yu Shiratsuchi, Yuya Sanada, Shinya Yamada, Ryoichi Nakatani, and Kohei Hamaya
    • Organizer
      第70回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Strain engineering of heteroepitaxial SiGe/Ge on Si with various crystal orientations2022

    • Author(s)
      Md. Mahfuz Alam, Youya Wagatsuma, Kazuya Okada, Michihiro Yamada, Kohei Hamaya, and Kentarou Sawano
    • Organizer
      The 242nd ECS Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Novel group IV semiconductor materials and devices for beyond Si technology2022

    • Author(s)
      K. Yamamoto
    • Organizer
      The 5th International Union of Materials Research Societies International Conference of Young Researchers on Advanced Materials
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Epitaxially grown of SiGe on Ge microbridge and observation of strong resonant light emission2022

    • Author(s)
      T. Inoue, Y. Wagatsuma, L. Ikegaya, A. Odashima, M. Nagao and K. Sawano
    • Organizer
      The 242nd ECS Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of microbridges based on Ge-on-SOI and observation of strong resonant light emission2022

    • Author(s)
      Ayaka Odashima, Takahiro Inoue, Youya Wagatsuma, Reo Ikegaya, Masaki Nagao and Kentarou Sawano
    • Organizer
      The 242nd ECS Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of strained Ge microbridge structures with meshed pads and their optical properties2022

    • Author(s)
      Reo Ikegaya, Takahiro Inoue, Takuya Komazawa, Youya Wagatsuma and Kentarou Sawano
    • Organizer
      The 242nd ECS Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Strong Room-temperature EL emissions from strained SiGe/Ge-on-Si (111) LEDs2022

    • Author(s)
      Shuya Kikuoka, Youya Wagatsuma, Yuwa Sugiura, Rena Kanesawa, Michihiro Yamada, Kohei Hamaya and Kentarou Sawano
    • Organizer
      The 242nd ECS Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of thick SiGe/Ge multiple quantum wells on Ge-on-Si and their optical properties2022

    • Author(s)
      Rena Kanesawa, Youya Wagatsuma, Syuya Kikuoka, Yuwa Sugiura and Kentarou Sawano
    • Organizer
      The 242nd ECS Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of crack propagation in strained SiGe on Ge(111) patterned with various etching thickness2022

    • Author(s)
      Youya Wagatsuma, Rena Kanesawa, Md. Mahfuz Alam, Kazuya Okada, Michihiro Yamada, Kohei Hamaya and Kentarou Sawano
    • Organizer
      The 242nd ECS Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of microbridges based on Ge-on-SOI and observation of strong resonant light emission2022

    • Author(s)
      Ayaka Odashima, Takahiro Inoue, Youya Wagatsuma, Reo Ikegaya, Masaki Nagao and Kentarou Sawano
    • Organizer
      The 22nd International Vacuum Congress
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Light emissions from strained Si1-xGex/Ge MQW formed on Ge-on-Si2022

    • Author(s)
      Rena Kanesawa, Youya Wagatsuma, Syuya Kikuoka, Yuwa Sugiura, Kentarou Sawano
    • Organizer
      The 22nd International Vacuum Congress
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Increased critical thickness of strained SiGe layers on Ge-on-Si(111)2022

    • Author(s)
      Youya Wagatsuma, Rena Kanesawa, Md. Mahfuz Alam, Kazuya Okada, Michihiro Yamada, Kohei Hamaya, and Kentarou Sawano
    • Organizer
      The 22nd International Vacuum Congress
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pumping power dependence of light emissions from strained Ge microbridges2022

    • Author(s)
      T. Inoue, Y. Wagatsuma, R. Ikegaya, A. Odashima, M. Nagao, K. Sawano
    • Organizer
      The 22nd International Vacuum Congress
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of SiGe/Ge microbridges based on Ge-on-Si(110) and observation of resonant light emission2022

    • Author(s)
      T. Inoue, Y. Wagatsuma, R. Ikegaya, A. Odashima, M. Nagao, K. Sawano
    • Organizer
      APAC Silicide 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Crack formations in SiGe/Ge MQW layers on Ge-on-Si(111) substrates2022

    • Author(s)
      Youya Wagatsuma, Rena Kanesawa, Md. Mahfuz Alam, Kazuya Okada, Michihiro Yamada, Kohei Hamaya, and Kentarou Sawano
    • Organizer
      APAC Silicide 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of branch-like bridges based on Ge-on-Si(110) and observation of strong resonant light emission2022

    • Author(s)
      Takahiro Inoue, Youya Wagatsuma, Leo Ikegaya, Kentarou Sawano
    • Organizer
      The 2022 Spring Meeting of the European Materials Research Society
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of etching depth on crack generation in strained SiGe films on mesa-patterned Ge2022

    • Author(s)
      Youya Wagatsuma, Rena Kanesawa, Md. Mahfuz Alam, Kazuya Okada, Michihiro Yamada, Kohei Hamaya, and Kentarou Sawano
    • Organizer
      The 2022 Spring Meeting of the European Materials Research Society
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication and Characterization of Ge n-MOS and n-MOSFET with Thermally Oxidized Yttrium Gate Insulator,2022

    • Author(s)
      W.-C. Wen, K. Yamamoto, D. Wang, H. Nakashima
    • Organizer
      9th International Symposium on Control of Semiconductor Interfaces
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of Ge MOSFET at low temperature (~250℃) for spintronics application2022

    • Author(s)
      S. Nasu, T. Matsuo, K. Yamamoto, D. Wang
    • Organizer
      The 5th International Union of Materials Research Societies International Conference of Young Researchers on Advanced Materials
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 歪みSiGe/Ge(111)におけるクラック伝搬に与えるメサ・エッチング深さの影響2022

    • Author(s)
      我妻勇哉,金澤伶奈,Md. Mahfuz Alam,岡田和也,井上貴裕,山田道洋,浜屋宏平,澤野憲太郎
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 歪み印加半導体薄膜のヘテロ成長におけるクラック発生とその抑制メカニズム2022

    • Author(s)
      我妻勇哉,金澤伶奈,Md. Mahfuz Alam,岡田和也,井上貴裕,山田道洋,浜屋宏平,澤野憲太郎
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Ge-on-Si(111)上に成長した歪みSiGe層の電気伝導特性に与えるクラック発生の影響2022

    • Author(s)
      市川大悟,我妻勇哉,山田道洋,浜屋宏平,澤野憲太郎
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Eu添加ZnOを活性層に用いた赤色LED構造の作製とデバイス特性2022

    • Author(s)
      西村和人,舘林潤,市川修平,山田晋也,浜屋宏平,藤原康文
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] MBE技術が拓くL21型ホイスラー合金のスピントロニクス2022

    • Author(s)
      浜屋宏平
    • Organizer
      「スピントロニクス学術研究基盤と連携ネットワーク(Spin-RNJ)」シンポジウム (Spin-RNJ 2021年度報告会)
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 縦型半導体スピン素子を目指したCo2FeSi上の高品質Ge成長と室温磁気抵抗比の増大2022

    • Author(s)
      山田 敦也,山田 道洋,山田 晋也,澤野 憲太郎,浜屋 宏平
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Long-distance spin-drift transport in strained SiGe2022

    • Author(s)
      Takahiro Naito, Kazuaki Kawashima, Michihiro Yamada, Youya Wagatsuma, Kentarou Sawano, and Kohei Hamaya
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] メサパターン上の歪みSiGe膜へのクラック発生におけるエッチング深さの影響2022

    • Author(s)
      我妻 勇哉、Md. Mahfuz Alam、岡田 和也、金澤伶奈、山田 道洋、浜屋 宏平、澤野 憲太郎
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 強磁性ホイスラー合金/n+-GaN ショットキートンネル接合電極を用いたGaNチャネル層中のスピン伝導検出2022

    • Author(s)
      加藤昌稔,山田晋也,市川修平,小林周平,山田道洋, 内藤貴大,舘林潤,藤原康文,浜屋宏平
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Two-terminal magnetoresistance ratio in Co-based Heusler alloy/germanium lateral spin-valve devices2022

    • Author(s)
      M. Yamada, K. Sumi, T. Naito, K. Sawano, and K. Hamaya
    • Organizer
      15th Joint MMM-INTERMAG Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 引っ張り歪み薄膜のヘテロ成長におけるクラック発生とその抑制メカニズム2021

    • Author(s)
      我妻 勇哉、Md. Mahfuz Alam、岡田 和也、金澤伶奈、山田 道洋、浜屋 宏平、澤野 憲太郎
    • Organizer
      第4回結晶工学xISYSE合同研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] エピタキシャルGe-on-Si(111)LEDの熱処理による室温EL発光強度増大2021

    • Author(s)
      杉浦 由和、佐々木 雅至、我妻 勇哉、山田 航大、山田 道洋、浜屋 宏平、澤野 憲太郎
    • Organizer
      第4回結晶工学xISYSE合同研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Co2FeSi上へのGe薄膜の高品質化と縦型Ge素子におけるMR比の増大2021

    • Author(s)
      Atsuya Yamada, Michihiro Yamada, Shinya Yamada, Kentarou Sawano, and Kohei Hamaya
    • Organizer
      第26回半導体におけるスピン工学の基礎と応用
    • Related Report
      2021 Annual Research Report
  • [Presentation] Co系ホイスラー合金/n+-GaNショットキートンネル接合を用いたGaNチャネル層へのスピン注入2021

    • Author(s)
      加藤昌稔、山田晋也、市川修平、小林周平、山田道洋、内藤貴大、舘林潤、藤原康文、浜屋宏平
    • Organizer
      第26回半導体におけるスピン工学の基礎と応用
    • Related Report
      2021 Annual Research Report
  • [Presentation] Observation of photoluminescence from SiGe/Ge MQW on Ge-on-Si(111)2021

    • Author(s)
      Y. Wagatsuma, Md. M. Alam, K. Okada, R. Kanesawa, M. Yamada, K. Hamaya and K. Sawano
    • Organizer
      International Symposium on Novel maTerials and quantum Technologies (ISNTT) 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Strong room-temperature EL emission from Ge-on-Si (111) diodes with ferromagnetic Schottky-tunnel electrodes2021

    • Author(s)
      Yuwa Sugiura, Masashi Sasaki, Youya Wagatsuma, Koudai Yamada, Yusuke Hoshi, Michihiro Yamada, Kohei Hamaya, Kentarou Sawano
    • Organizer
      International Symposium on Novel maTerials and quantum Technologies (ISNTT) 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 半導体への高効率スピン注入とゲルマニウムスピントロニクスについて2021

    • Author(s)
      浜屋宏平
    • Organizer
      応用物理学会「強的秩序とその操作に関わる研究会 : 夏の学校」
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Annealing tolerance of Co-based Heusler alloys/Fe/Ge spin injection interfaces2021

    • Author(s)
      Kazuaki Sumi, Michihiro Yamada, Takahiro Naito, Kohei Kudo, Kentarou Sawano, Kohei Hamaya
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Room-temperature spin diffusion length in strained SiGe2021

    • Author(s)
      Takahiro Naito, Michihiro Yamada, Youya Wagatsuma, Shinya Yamada, Kentarou Sawano, Kohei Hamaya
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Room-temperature two-terminal magnetoresistance ratios in Ge-based vertical spin-valve devices with Co2FeSi2021

    • Author(s)
      Michihiro Yamada, Atsuya Yamada, Takamasa Usami, Shinya Yamada, Kentarou Sawano, Kohei Hamaya
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Influence of non-magnetic layers at Co2FeAl0.5Si0.5/Ge interface on spin injection/detection efficiency2021

    • Author(s)
      Rintaro Nishimura, Takahiro Naito, Michihiro Yamada, Akira Masago, Yu Shiratsuchi, Ryoichi Nakatani, Kentarou Sawano, Tamio Oguchi, Kohei Hamaya
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 縦型半導体スピン素子のための単結晶Co2FeSi上Ge薄膜の高品質化2021

    • Author(s)
      山田 敦也、山田 道洋、山田 晋也、澤野 憲太郎、浜屋 宏平
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 歪みSiGe/Ge(111)におけるクラック形成と伝搬方向制御2021

    • Author(s)
      我妻 勇哉、Md. Mahfuz Alam、岡田 和也、金澤 伶奈、山田 道洋、浜屋 宏平、澤野 憲太郎
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Ge-on-Si(111) LEDの熱処理による室温EL発光強度増大2021

    • Author(s)
      杉浦 由和、佐々木 雅至、我妻 勇哉、山田 航大、星 裕介、山田 道洋、浜屋 宏平、澤野 憲太郎
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 歪み緩和SiGe/Si(111)バッファー層の作製とアニールの効果2021

    • Author(s)
      岡田 和也、我妻 勇哉,、山田 航大、井上 貴裕、澤野 憲太郎
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 歪みGeマイクロブリッジにおける端面共振発光の観測2021

    • Author(s)
      井上 貴裕、我妻 勇哉、池ヶ谷 玲雄、岡田 和也、澤野 憲太郎
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Ge-on-Si(100) p-i-nダイオードの室温 EL 発光における i-Ge 層膜厚の影響2021

    • Author(s)
      佐々木 雅至、杉浦 由和、我妻 勇哉、澤野 憲太郎、山田 航大
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] メッシュ型パッドを有する歪みGeマイクロブリッジ構造の作製と発光特性2021

    • Author(s)
      池ヶ谷 玲雄、井上 貴裕、佐々木雅至、我妻 勇哉、澤野 憲太郎
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] リセスチャネル化によるメタルS/D型Ge n-MOSFETの電流駆動力向上2021

    • Author(s)
      松尾 拓朗、山本 圭介、王 冬
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] GeスピンMOSFETのための低温(~250°C)デバイスプロセスの構築2021

    • Author(s)
      松尾 拓朗、山本 圭介、王 冬
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 強誘電体基板上の高配向V3Si薄膜成長2021

    • Author(s)
      浅尾 拓斗、山田 道洋、白土 優、阿保 智、真砂 啓、中谷 亮一、小口 多美夫、浜屋 宏平
    • Organizer
      第82回応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Suppression of crack formation and propagation in strained SiGe by patterning Ge-on-Si substrates2021

    • Author(s)
      Y. Wagatsuma, Md. M. Alam, K. Okada, R. Kanesawa, M. Yamada, K. Hamaya and K. Sawano
    • Organizer
      21st International Conference on Molecular Beam Epitaxy
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Suppression of crack formation in strained SiGe layers by patterning of Ge-on-Si substrates2021

    • Author(s)
      Youya Wagatsuma, Md. Mahfuz Alam, Kazuya Okada, Michihiro Yamada, Kohei Hamaya and Kentarou Sawano
    • Organizer
      EMRS 2021, Spring meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of uniaxial strain direction on luminescence properties of strained Ge microbridge structures2021

    • Author(s)
      Takahiro Inoue, Youya Wagatsuma, Kodai Yamada and Kentarou Sawano
    • Organizer
      EMRS 2021, Spring meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Room temperature EL from strained Ge-on-Si(111) diode structures2021

    • Author(s)
      Yuwa Sugiura, Youya Wagatsuma, Koudai Yamada, Yusuke Hoshi, Michihiro Yamada, Kohei Hamaya and Kentarou Sawano
    • Organizer
      EMRS 2021, Spring meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Strong resonant light emission in strained Ge microbridges2021

    • Author(s)
      Takahiro Inoue, Youya Wagatsuma, Leo Ikegaya, Kazuya Okada and Kentarou Sawano
    • Organizer
      International Symposium on Novel maTerials and quantum Technologies (ISNTT) 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 引っ張り歪み薄膜のヘテロ成長におけるクラック発生とその抑制メカニズム2021

    • Author(s)
      我妻 勇哉、Md. Mahfuz Alam、岡田 和也、金澤伶奈、山田 道洋、浜屋 宏平、澤野 憲太郎
    • Organizer
      第4回結晶工学×ISYSE合同研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 貼り合わせにより作製した歪みGe-on-Insulator基板上への歪みSiGe層の成長2021

    • Author(s)
      伊藤 拓海、我妻 勇哉、岡田 和也、澤野 憲太郎
    • Organizer
      第4回結晶工学×ISYSE合同研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] エピタキシャルGe-on-Si(111)LEDの熱処理による室温EL発光強度増大2021

    • Author(s)
      杉浦 由和 、佐々木 雅至、我妻 勇哉、山田 航大、山田 道洋、浜屋 宏平、澤野 憲太郎
    • Organizer
      第4回結晶工学×ISYSE合同研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Geマイクロブリッジ上への歪みSiGeのエピタキシャル成長2021

    • Author(s)
      井上 貴裕、我妻 勇哉、池ヶ谷 玲雄、岡田 和也、澤野 憲太郎
    • Organizer
      第4回結晶工学×ISYSE合同研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] (Invited) Fabrication of Ge-on-Insulator By Epitaxial Growth and Ion-Implanted Exfoliation for Electronics and Opt-Electronics Applications2021

    • Author(s)
      K. Yamamoto, D. Wang, H. Nakashima
    • Organizer
      240th ECS meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Low-Temperature Fabrication of Ge MOS Capacitor with Wet Oxidized Yttrium Interlayer2021

    • Author(s)
      K. Yamamoto, K. Iseri, D. Wang, H. Nakashima
    • Organizer
      2021 International Conference on Solid State Device and Materials (SSDM 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] (Invited) Schottky Barrier Height Control at Metal/Ge Interface by Insertion of Nitrogen Contained Amorphous Layer2021

    • Author(s)
      K. Yamamoto, D. Wang, H. Nakashima
    • Organizer
      240th ECS meeting
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] GeスピンMOSFET実現に向けた低温(~250℃)デバイスプロセスの構築2021

    • Author(s)
      那須 新悟、松尾 拓朗、山本 圭介、王 冬
    • Organizer
      2021年度応用物理学会九州支部学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Room-temperature magnetoresistance effect in high-quality ferromagnet/germanium Schottky-tunnel lateral spin devices2021

    • Author(s)
      K. Hamaya and M. Yamada
    • Organizer
      THERMEC'2020
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Ferromagnet-Semiconductor Hybrid Structures for Spintronic Devices2021

    • Author(s)
      K. Hamaya
    • Organizer
      2021 ASEAN Joint Workshop
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 歪みGeマイクロブリッジ構造の発光特性に及ぼす一軸歪み方向の影響2021

    • Author(s)
      井上 貴裕,我妻 勇哉,山田 航大,澤野 憲太郎
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Ge基板に替わりGe-on-Siを用いることによる歪みSiGeへのクラック発生抑制2021

    • Author(s)
      我妻 勇哉, Md. Mahfuz Alam, 岡田 和也, 山田 道洋, 浜屋 宏平, 澤野 憲太郎
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 歪みGe-on-Si(111)ダイオード構造からの室温EL発光2021

    • Author(s)
      杉浦 由和, 我妻 勇哉, 山田 航大, 星 祐介, 山田 道洋, 浜屋 宏平, 澤野 憲太郎
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] エッチバック法を用いたGe-on-Insulator作製に向けたウェットエッチング法の検討2021

    • Author(s)
      清水昇,山本圭介,王冬,中島寛
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] High Interfacial and Film Qualities of Thermally Oxidized Y2O3 and Sc2O3 MOS Structures on Germanium2021

    • Author(s)
      K. Yamamoto, H. Kanakogi, W.-C. Wen, D. Wang, and H. Nakashima
    • Organizer
      2020年度東北大学電気通信研究所 共同プロジェクト研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] DLTS法によるGeゲートスタック中のトラップ解析2021

    • Author(s)
      中島寛, W.-C. Wen, 山本圭介, 王冬
    • Organizer
      第26回 電子デバイス界面テクノロジー研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] プラズマCVDを用いたSiO2/GeO2/Ge MOS構造の形成技術開発2021

    • Author(s)
      小俣快晴,澤野憲太郎,中川清和,荒井哲司,高松利行
    • Organizer
      第26回 電子デバイス界面テクノロジー研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Si(111)基板上のエピタキシャルGe(111)ダイオードからの室温EL発光2020

    • Author(s)
      杉浦 由和,我妻 勇哉,山田 航大,星 裕介,山田 道洋,浜屋 宏平,澤野 憲太郎
    • Organizer
      第3回結晶工学×ISYSE合同研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] メサ型Ge-on-Si(111)基板上への臨界膜厚を超えた歪みSiGe層の作製2020

    • Author(s)
      我妻 勇哉,Md. Mahfuz Alam,岡田 和也,山田 道洋,浜屋 宏平,澤野 憲太郎
    • Organizer
      第3回結晶工学×ISYSE合同研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 歪みGeマイクロブリッジ構造の発光特性に与える一軸歪み方向の影響2020

    • Author(s)
      井上 貴裕,我妻 勇哉,山田 航大,澤野 憲太郎
    • Organizer
      第3回結晶工学×ISYSE合同研究会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Observation of room-temperature spin transport in Ge-based lateral spin-valve devices with low-temperature grown Co2MnSi electrodes2020

    • Author(s)
      K. Kudo, M. Yamada, S. Honda, S. Yamada, K. Sawano, and K. Hamaya
    • Organizer
      第25回半導体におけるスピン工学の基礎と応用
    • Related Report
      2020 Annual Research Report
  • [Presentation] Formation of Ge mirror plane with high speed wet etching for etchback Ge-on-Insulator fabrication2020

    • Author(s)
      N. Shimizu, K. Yamamoto, D. Wang, and H. Nakashima
    • Organizer
      22nd Cross Straits Symposium on Energy and Environmental Science and Technology
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication and characterization of germanium gate stack with thermally oxidized yttrium and scandium dielectrics2020

    • Author(s)
      H Kanakogi, W.-C. Wen, K. Yamamoto, D. Wang, and H. Nakashima
    • Organizer
      22nd Cross Straits Symposium on Energy and Environmental Science and Technology
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enhancement of the spin Hall angle by the interdiffusion of atoms in Co2FeAl0.5Si0.5/n-Ge heterostructures2020

    • Author(s)
      S. Kaneta-Takada, M. Yamada, S. Sato, S. Arai, L. D. Anh, K. Hamaya, and S. Ohya
    • Organizer
      65th Annual Conference on Magnetism and Magnetic Materials (MMM) 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Room-temperature germanium spintronics developed by atomically controlled heterointerfaces2020

    • Author(s)
      K. Hamaya
    • Organizer
      The 44th Annual Conference on MAGNETISM in Japan, Symposium
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Influence of external temperature on interface spin polarization of ferromagnet-semiconductor heterostructures2020

    • Author(s)
      M. Yamada, Y. Shiratsuchi, H. Kambe, K. Kudo, S. Yamada, K. Sawano, R. Nakatani, and K. Hamaya
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] In-situドーピング制御によるGe-on-Siからの室温EL発光2020

    • Author(s)
      山田 航大,星 裕介,澤野 憲太郎
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 選択成長を用いたGe-on-Si(111)基板上への高品質な歪みSiGe層の作製2020

    • Author(s)
      我妻 勇哉, Md. Mahfuz Alam, 岡田 和也, 星 裕介, 山田 道洋, 浜屋 宏平, 澤野 憲太郎
    • Organizer
      第81回応用物理学会秋季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Thermal stability at the interface between ferromagnetic alloys and germanium for semiconductor spintronics devices2020

    • Author(s)
      M. Yamada, T. Matsuoka, T. Ueno, T. Naito, S. Yamada, K. Sawano, and K. Hamaya
    • Organizer
      PRiME 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Strain engineering of Si/Ge heterostructures on Ge-on-Si platform2020

    • Author(s)
      K. Sawano, Y. Wagatsuma, Md. Mahfuz Alam, K. Omata, K. Niikura, S. Shibata, Y. Hoshi, M. Yamada, and K. Hamaya
    • Organizer
      PRiME 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Increased critical thickness of strained SiGe on Ge-on-Si(111)2020

    • Author(s)
      Y. Wagatsuma, Md. Mahfuz Alam, K. Okada, Y. Hoshi, M. Yamada, K. Hamaya, and K. Sawano
    • Organizer
      PRiME 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Strong room-temperature electroluminescence from Ge-on-Si by precise in-situ doping control2020

    • Author(s)
      K. Yamada, Y. Hoshi, and K. Sawano
    • Organizer
      PRiME 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Border-Trap Characterization for Ge Gate Stacks with Thin GeOX layer Using Deep-Level Transient Spectroscopy2020

    • Author(s)
      H. Nakashima, W.-C. Wen, K. Yamamoto, and D. Wang
    • Organizer
      PRiME 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Isotropic Wet Etching and Improving Surface Flatness of Ge for Etchback Ge-on-Insulator Fabrication2020

    • Author(s)
      N. Shimizu, K. Yamamoto, D. Wang, and H. Nakashima
    • Organizer
      PRiME 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thermally Oxidized Yttrium and Scandium Gate Dielectrics on Germanium with High Interfacial and Film Qualities2020

    • Author(s)
      H. Kanakogi, W.-C. Wen, K. Yamamoto, D. Wang, and H. Nakashima
    • Organizer
      2020 International Conference on Solid State Devices and Materials
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Room-temperature magnetoresistance in CoFe/p-Ge/Co2FeSi vertical spin-valve devices"2020

    • Author(s)
      A. Yamada, T. Shiihara, M. Yamada, M. Honda, S. Yamada, and K. Hamaya
    • Organizer
      Spin-RNJ 若手オンライン研究発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ホイスラー合金Co2FeSi/BaTiO3界面マルチフェロイク構造の磁気特性2020

    • Author(s)
      山田晋也, 寺本侑樹, 松實大志, 村田太一, 工藤康平, 谷山智康, 浜屋宏平
    • Organizer
      強的秩序とその操作に関わる研究グループ 第10回 研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Spin transport in non-degenerate n-Ge2020

    • Author(s)
      T. Ueno, M. Yamada, T. Matsuoka, T. Naito, S. Yamada, K. Sawano, and K. Hamaya
    • Organizer
      第67回応用物理学会春季学術講演会、上智大学 四谷キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Room-temperature magnetoresistance in p-Ge based vertical spin-valve devices with a Co2FeSi layer2020

    • Author(s)
      A. Yamada, T. Shiihara, M. Yamada, M. Honda, S. Yamada, and K. Hamaya
    • Organizer
      第67回応用物理学会春季学術講演会、上智大学 四谷キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] 熱電ホイスラー合金Fe2TiSiエピタキシャル薄膜の電気・熱電特性2020

    • Author(s)
      工藤康平, 嶋貫雄太, 石部貴史, 真砂啓, 山田晋也, 中村芳明, 浜屋宏平
    • Organizer
      第166回日本金属学会春季講演大会, 東京工業大学 大岡山キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] GOI基板作製における貼り合わせ後熱処理の影響2020

    • Author(s)
      柴田 翔吾、石川 亮佑、星 裕介、澤野 憲太郎
    • Organizer
      第67回応用物理学会春季学術講演会、上智大学 四谷キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Ge-on-Si基板のパターニングによる歪みSiGe層中クラック発生の抑制2020

    • Author(s)
      我妻 勇哉、Md. Mahfuz Alam、岡田 和也、星 裕介、山田 道洋、浜屋 宏平、澤野 憲太郎
    • Organizer
      第67回応用物理学会春季学術講演会、上智大学 四谷キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] High-quality epitaxial growth of half-metallic Co2FeSi films on a Co-terminated GaN(0001) surface2019

    • Author(s)
      S. Yamada, Y. Goto, J. Tatebayashi, S. Ichikawa, Y. Fujiwara, K. Hamaya
    • Organizer
      Compound Semiconductor Week 2019 (CSW2019), 奈良春日野フォーラム甍
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] GaN(0001)上へのハーフメタルホイスラー合金Co2FeSi薄膜の低温MBE成長2019

    • Author(s)
      山田晋也, 本多遼成, 後藤優貴, 市川修平, 舘林潤, 藤原康文, 浜屋宏平
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] 熱電材料Fe2TiSiエピタキシャル薄膜の低温MBE成長2019

    • Author(s)
      嶋貫雄太, 工藤康平, 山田晋也, 石部貴史, 中村芳明, 浜屋宏平
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Enhancement of room-temperature spin signals in Ge lateral spin devices by improving the quality of Heusler/Ge interfaces2019

    • Author(s)
      M. Yamada, M. Tsukahara, F. Kuroda, S. Yamada, T. Fukushima, K. Sawamo, T. Oguchi, and K. Hamaya
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Spin-dependent transport through n-Ge in vertical spin-valve devices2019

    • Author(s)
      T. Shiihara, M. Yamada, M. Honda, S. Yamada, and K. Hamaya
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Spin transport in a strained SiGe alloy2019

    • Author(s)
      T. Naito, M. Yamada, M. Tsukahara, S. Yamada, K. Sawano, and K. Hamaya
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] 強磁性Fe3Si上へのゲルマニウムPN接合の作製2019

    • Author(s)
      本田瑞葵, 椎原貴洋, 山田道洋, 山田晋也, 浜屋宏平
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Co2FeSi/BaTiO3界面マルチフェロイックヘテロ構造の磁気特性2019

    • Author(s)
      寺本侑樹, 山田晋也, 村田太一, 松實大志, 工藤康平, 谷山智康, 浜屋宏平
    • Organizer
      第43回日本磁気学会学術講演会, 京都大学 吉田キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] ホイスラー合金CoFeVSiにおける正の線形磁気抵抗効果の起源2019

    • Author(s)
      山田晋也, 小林慎也, 真砂啓, L. S. R. Kumara, 田尻寛男, 福島鉄也, 阿保智, 桜庭裕弥, 宝野和博, 小口多美夫, 浜屋宏平
    • Organizer
      第43回日本磁気学会学術講演会, 京都大学 吉田キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] 強磁性体/半導体スピン素子におけるスピン蓄積信号の 非線形バイアス依存性2019

    • Author(s)
      藤田裕一, 山田道洋, 塚原誠人, 内藤貴大, 山田晋也, 澤野憲太郎, 浜屋宏平
    • Organizer
      第43回日本磁気学会学術講演会, 京都大学 吉田キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] 強磁性体/半導体スピン素子の性能と界面磁性の相関2019

    • Author(s)
      山田道洋, 白土優, 塚原誠人, 神部広翔, 工藤康平, 山田晋也, 澤野憲太郎, 中谷亮一, 浜屋宏平
    • Organizer
      第43回日本磁気学会学術講演会, 京都大学 吉田キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Magnetic and electrical properties of epitaxial Co2FeSi/GaN(0001) heterostructures for spintronic applications2019

    • Author(s)
      S. Yamada, R. Honda, Y. Goto, S. Ichikawa, J. Tatebayashi, Y. Fujiwara, and K. Hamaya
    • Organizer
      The 38th Electronic Materials Symposium (EMS-38), THE KASHIHARA, 奈良
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] IV族半導体スピントロニクスデバイス研究について2019

    • Author(s)
      浜屋宏平
    • Organizer
      名古屋大学物性談話会, 名古屋大学 東山キャンパス
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ゲルマニウムスピントロニクス研究について2019

    • Author(s)
      浜屋宏平
    • Organizer
      応用物理学会北海道支部講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Observation of positive linear magnetoresistance in epitaxial Mn2CoAl films2019

    • Author(s)
      K. Kudo, S. Yamada, A. N. Hattori , H. Tanaka, and K. Hamaya
    • Organizer
      64th Annual Conference on Magnetism and Magnetic Materials (MMM) 2019, Rio All-Suite Hotel & Casino, Las Vegas, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Room-temperature spin-dependent transport through Sb-doped Ge in vertical spin-valve devices2019

    • Author(s)
      T. Shiihara, M. Yamada, M. Honda, S. Yamada, and K. Hamaya
    • Organizer
      64th Annual Conference on Magnetism and Magnetic Materials (MMM) 2019, Rio All-Suite Hotel & Casino, Las Vegas, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Flexible ferromagnetic Co2FeSi films on flexible Ge(111)2019

    • Author(s)
      S. Yamada, H. Higashi, T. Kanashima, and K. Hamaya
    • Organizer
      8th International Symposium on Control of Semiconductor Interfaces (ISCSI-8), 東北大学 片平キャンパス
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Enhancement in room-temperature magnetoresistance ratio in p-Ge based vertical spin-valve devices with a Co2FeSi layer2019

    • Author(s)
      A. Yamada, T. Shiihara, M. Yamada, M. Honda, S. Yamada, and K. Hamaya
    • Organizer
      8th International Symposium on Control of Semiconductor Interfaces (ISCSI-8), 東北大学 片平キャンパス
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Inverse local magnetoresistance effect up to room temperature in ferromagnet-semiconductor lateral spin-valve devices2019

    • Author(s)
      T. Naito, M. Yamada, S. Yamada, K. Sawano, and K. Hamaya
    • Organizer
      8th International Symposium on Control of Semiconductor Interfaces (ISCSI-8), 東北大学 片平キャンパス
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Germanium PN junctions between ferromagnetic CoFe and Fe3Si layers for spintronic applications2019

    • Author(s)
      M. Honda, T. Shiihara, M. Yamada, S. Yamada, and K. Hamaya
    • Organizer
      8th International Symposium on Control of Semiconductor Interfaces (ISCSI-8), 東北大学 片平キャンパス
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 全エピタキシャルCoFe/Sb-doped Ge/Fe3Si縦型構造における室温スピン伝導の観測2019

    • Author(s)
      椎原貴洋, 山田道洋, 本田瑞葵, 山田晋也, 浜屋宏平
    • Organizer
      Spin Research Network of Japan (Spin-RNJ) 2019年度年次報告会, 大阪大学 豊中キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] n-SiGe横型スピンバルブ素子における負の局所スピン信号2019

    • Author(s)
      内藤貴大, 山田道洋, 山田晋也, 澤野憲太郎, 浜屋宏平
    • Organizer
      Spin Research Network of Japan (Spin-RNJ) 2019年度年次報告会, 大阪大学 豊中キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] 非縮退n-Ge中のスピン伝導特性2019

    • Author(s)
      上野登希生, 山田道洋, 松岡哲平, 内藤貴大, 山田晋也, 澤野憲太郎, 浜屋宏平
    • Organizer
      Spin Research Network of Japan (Spin-RNJ) 2019年度年次報告会, 大阪大学 豊中キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] 単結晶Co2FeSi/BaTiO3界面マルチフェロイク構造における磁気特性2019

    • Author(s)
      寺本侑樹, 松實大志, 山田晋也, 村田太一, 工藤康平, 谷山智康, 浜屋宏平
    • Organizer
      Spin Research Network of Japan (Spin-RNJ) 2019年度年次報告会, 大阪大学 豊中キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Germanium Spintronics for Room-Temperature Magnetoresistance Effect2019

    • Author(s)
      K. Hamaya
    • Organizer
      第24回「半導体スピン工学の基礎と応用」研究会 (PASPS-24)、東北大学 片平キャンパス
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Improvement of nonmonotonic bias-dependent local spin signals in Co2FeAl0.5Si0.5/Ge lateral spin-valve devices2019

    • Author(s)
      M. Yamada, S. Honda, Y, Fujita, S. Yamada, K. Sawano, and K. Hamaya
    • Organizer
      第24回「半導体スピン工学の基礎と応用」研究会 (PASPS-24)、東北大学 片平キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Observation of lateral spin transport in non-degenerate n-Ge2019

    • Author(s)
      T. Ueno, M. Yamada, T. Matsuoka, T. Naito, S. Yamada, K. Sawano and K. Hamaya
    • Organizer
      第24回「半導体スピン工学の基礎と応用」研究会 (PASPS-24)、東北大学 片平キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Enhanced Photoluminescence from Strained Ge-on-Insulator Surface-Passivated with Hydrogenated Amorphous Si2019

    • Author(s)
      Kenta Niikura, Yuta Kumazawa, Natsuki Yamahata, Yusuke Hoshi, Tsukasa Takamura, Kimihiko Saito, Makoto Konagai, Kentarou Sawano
    • Organizer
      8th International Symposium on Control of Semiconductor Interfaces (ISCSI-8)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Surface Morphology Evolution of Strained Si1-xGex Grown on Relaxed Ge(111)2019

    • Author(s)
      Youya Wagatsuma, Md. Mahfuz Alam, Kazuya Okada, Yusuke Hoshi, Michihiro Yamada, Kohei Hamaya, Kentarou Sawano
    • Organizer
      8th International Symposium on Control of Semiconductor Interfaces (ISCSI-8)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Si/Ge Heterostructures with Various Surface Orientations2019

    • Author(s)
      Md. Mahfuz Alam and Kentarou Sawano
    • Organizer
      EMN Epitaxy 2019, Amsterdam, the Netherlands
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Strain states and critical thickness of Si1-xGex epitaxial layers on Ge-on-Si(111)2019

    • Author(s)
      Md. Mahfuz Alam, Kazuya Okada, Yuya Wagatsuma, Yusuke Hoshi, Michihiro Yamada, Kohei Hamaya and Kentarou Sawano
    • Organizer
      ISTDM / ICSI 2019 Conference, Madison, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] In-situ ドープによる Ge-on-Si(111)の n 型伝導制御2019

    • Author(s)
      水口 俊希、大島 修一郎、澤野 憲太郎
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] PドープGe-on-Si における拡散ストップ層挿入の効果2019

    • Author(s)
      山田 航大、熊澤 裕太、丸泉 琢也、澤野 憲太郎
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] ナノ多孔層ガラス基板を利用したGeナノドットの作製2019

    • Author(s)
      石井 大介、下田 麻由、伊藤 匠、星 裕介、藤間 卓也、澤野 憲太郎
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Ge-on-Si(111) 及びGe(111) 基板上の歪みSi1-xGexの臨界膜厚2019

    • Author(s)
      我妻 勇哉、Md. Mahfuz Alam、岡田 和也、星 裕介、山田 道洋、浜屋 宏平、澤野 憲太郎
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] 歪みSi/緩和SiGe/Si(110)ヘテロ構造p-MOSFETにおける電界効果移動度の歪みSi膜厚依存性2019

    • Author(s)
      藤澤 泰輔、各川 敦史、浪内 大地、斎藤 慎吾、佐野 雄一、泉 大輔、山中 淳二、原 康祐、澤野 憲太郎、中川 清和、有元 圭介
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] 歪みSi/緩和SiGe/Si(110)ヘテロ構造の反転キャリアのHall移動度評価2019

    • Author(s)
      浪内 大地、澤野 憲太郎、各川 敦史、佐野 雄一、泉 大輔、有元 圭介、山中 淳二、原 康祐、中川 清和
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Conduction Type Control of Ge-on-Insulator: Combination of Smart-Cut and Defect Elimination2019

    • Author(s)
      K. Yamamoto, K. Nakae, H. Akamine, D. Wang, H. Nakashima, Md. M Alam, K. Sawano, Z. Xue, M. Zhang, Z. Di
    • Organizer
      2nd Joint ISTDM / ICSI 2019 Conference, Madison, WI, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Low temperature (<300°C) Fabrication of Ge MOS Structure for Advanced Electronic Devices2019

    • Author(s)
      K. Iseri, W.-C. Wen, K. Yamamoto, D. Wang, H. Nakashima
    • Organizer
      2019 International Conference on Solid State Device and Materials (SSDM 2019)、名古屋大学 東山キャンパス
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Border Trap Evaluation for Al2O3/GeOX/p-Ge Gate Stacks using Deep-Level Transient Spectroscopy2019

    • Author(s)
      W.-C. Wen, K. Yamamoto, D. Wang, H. Nakashima
    • Organizer
      ISTDM / ICSI 2019 Conference, Madison, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Border-Trap Characterization for Ge Gate Stacks Using Deep-Level Transient Spectroscopy2019

    • Author(s)
      H. Nakashima, W.-C. Wen, K. Yamamoto, D. Wang
    • Organizer
      236th ECS Meeting, Atlanta, GA, USA
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Study on Position of Border Traps in Al2O3/GeOx/p-Ge Gate Stacks Using Deep-Level Transient Spectroscopy2019

    • Author(s)
      W.-C. Wen, K. Yamamoto, D. Wang H. Nakashima
    • Organizer
      8th International Symposium on Control of Semiconductor Interfaces (ISCSI-8), 東北大学 片平キャンパス
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Border-Trap Evaluation for SiO2/GeO2/Ge Gate Stacks Using Deep-Level Transient Spectroscopy2019

    • Author(s)
      H. Nakashima, W.-C. Wen, K. Yamamoto, D. Wang
    • Organizer
      8th International Symposium on Control of Semiconductor Interfaces (ISCSI-8), 東北大学 片平キャンパス
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 新規電子デバイス応用に向けたGeゲートスタックの低温(<300°C)形成2019

    • Author(s)
      井芹 健人、温 偉辰、山本 圭介、王 冬、中島 寛
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Evaluation of Border Traps in Al2O3/GeOx/p-Ge Stacks Using Deep-Level Transient Spectroscopy2019

    • Author(s)
      W.-C. Wen、K. Yamamoto、D. Wang、H. Nakashima
    • Organizer
      第80回応用物理学会秋季学術講演会, 北海道大学 札幌キャンパス
    • Related Report
      2019 Annual Research Report
  • [Presentation] Ge-on-Insulator基板上へのMOSデバイスの作製と評価2019

    • Author(s)
      清水 昇、山本 圭介、王 冬、中島 寛
    • Organizer
      2019年度応用物理学会九州支部学術講演会、熊本大学 黒髪南地区
    • Related Report
      2019 Annual Research Report
  • [Patent(Industrial Property Rights)] スピンMOSFET2022

    • Inventor(s)
      山本 圭介、浜屋 宏平
    • Industrial Property Rights Holder
      国立大学法人九州大学、国立大学法人大阪大学
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2022-194902
    • Filing Date
      2022
    • Related Report
      2022 Annual Research Report

URL: 

Published: 2019-06-27   Modified: 2025-02-04  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi