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Bottom-Up Integration of Vertical Nanowire Spin-Transistors on Silicon

Research Project

Project/Area Number 17H02727
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Nanostructural physics
Research InstitutionHokkaido University

Principal Investigator

Hara Shinjiro  北海道大学, 量子集積エレクトロニクス研究センター, 准教授 (50374616)

Co-Investigator(Kenkyū-buntansha) 本久 順一  北海道大学, 情報科学研究院, 教授 (60212263)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2019: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2018: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2017: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Keywords垂直自立型ナノワイヤ / スピンエレクトロニクス / スピントランジスタ / ボトムアップ / メゾスコピック系
Outline of Final Research Achievements

The purpose of this study is to create and integrate vertical nanowire-spin-transistors, in which vertical semiconductor nanowires (NWs) are used with magnetic tunnel junction (MTJ) electrodes, on semiconducting substrates, e.g., Si. Such vertical NW-spin-transistors are realized using free-standing NWs with a high aspect ratio fabricated by our bottom-up-type formation method in a reproducible manner in terms of a location and size of NWs on substrates. We succeeded in obtaining some experimental results mainly relating to quasi-one-dimensional mesoscopic phenomena of electron scattering and magnetotransport in NWs, control of magnetization switching in patterned CoFe nanolayers of CoFe/MgO-MTJ electrodes by external magnetic fields, selective-area growth of Si and Ge NWs based on a vapor-solid-liquid method, and magnetotransport properties of a nanowire with ferromagnetic Ni electrodes after carrying out the established device fabrication processes for burying and exposing NWs.

Academic Significance and Societal Importance of the Research Achievements

本課題の最終目標である縦型NWスピン電界効果トランジスタの実現には至っていないが、それを達成すべく推進した種々の要素技術・物性評価に関する成果が多数得られた。計画通り、国内・海外研究協力先との連携を積極的に推進することで、素子設計の具体的な指針を得られたことの社会的意義は大きい。本課題で得られた種々の要素技術を結集して、今後の研究推進により最終的な目標である縦型素子実用化が近づいた。また実用化に直接結びつく成果のみならず、NWチャネル中の電子散乱過程等の擬一次元メゾスコピック系物性物理や、強磁性体薄膜を電極パターン化する場合の磁化制御等に関する基礎的な理解が深まった学術的意義は極めて大きい。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (31 results)

All 2020 2019 2018 2017 Other

All Int'l Joint Research (3 results) Journal Article (8 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results) Presentation (18 results) (of which Int'l Joint Research: 18 results,  Invited: 2 results) Book (2 results)

  • [Int'l Joint Research] Justus-Liebig-University Giessen(ドイツ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] Justus-Liebig-University Giessen(ドイツ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Justus-Liebig-University of Giessen(ドイツ)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Anomalous Angle-Dependent Magnetotransport Properties of Single InAs Nanowires2020

    • Author(s)
      Patrick Uredat, Ryutaro Kodaira, Ryoma Horiguchi, Shinjiro Hara, Andreas Beyer, Kerstin Volz, Peter J. Klar, Matthias T. Elm
    • Journal Title

      Nano Letters

      Volume: 20 Issue: 1 Pages: 618-624

    • DOI

      10.1021/acs.nanolett.9b04383

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Transport Properties of InAs Nanowires: Introduction to MnAs/InAs Heterojunction Nanowires for Spintronics (Invited Topical Review Paper)2020

    • Author(s)
      Patrick Uredat, Matthias T. Elm, Ryoma Horiguchi, Peter J. Klar, Shinjiro Hara
    • Journal Title

      Journal of Physics D: Applied Physics

      Volume: 53 Issue: 33 Pages: 333002-333002

    • DOI

      10.1088/1361-6463/ab88e8

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Selective-Area Growth and Transport Properties of MnAs/InAs Heterojunction Nanowires (Invited Paper)2019

    • Author(s)
      Shinjiro Hara, Matthias T. Elm, Peter J. Klar
    • Journal Title

      Journal of Materials Research

      Volume: 34 Issue: 23 Pages: 3863-3876

    • DOI

      10.1557/jmr.2019.333

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Selective-area growth of magnetic MnAs nanodisks on Si (111) substrates using multiple types of dielectric masks2019

    • Author(s)
      Ryoma Horiguchi, Shinjiro Hara, Masaya Iida, Kohei Morita
    • Journal Title

      Journal of Crystal Growth

      Volume: 507 Pages: 226-231

    • DOI

      10.1016/j.jcrysgro.2018.11.015

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetization characterization of MnAs nanoclusters at close range in bended MnAs/InAs heterojunction nanowires2019

    • Author(s)
      Ryutaro Kodaira, Ryoma Horiguchi, Shinjiro Hara
    • Journal Title

      Journal of Crystal Growth

      Volume: 507 Pages: 241-245

    • DOI

      10.1016/j.jcrysgro.2018.11.023

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic domain structure and domain wall analysis of ferromagnetic MnAs nanodisks selectively-grown on Si (111) substrates for spintronic applications2018

    • Author(s)
      Ryoma Horiguchi, Shinjiro Hara, Masaya Iida
    • Journal Title

      Journal of Applied Physics

      Volume: 124 Issue: 15

    • DOI

      10.1063/1.5045241

    • NAID

      120006732895

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Shape control of ferromagnetic MnAs nanoclusters exhibiting magnetization switching in vertical MnAs/InAs heterojunction nanowires2017

    • Author(s)
      Ryutaro Kodaira、Kyohei Kabamoto、Shinjiro Hara
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 56 Issue: 6S1 Pages: 06GH03-06GH03

    • DOI

      10.7567/jjap.56.06gh03

    • NAID

      210000147903

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Analyses of magnetization switching and magnetic domains in lateral MnAs nanowires in combination with structural characterization2017

    • Author(s)
      Ryoma Horiguchi、Hiroaki Kato、Kyohei Kabamoto、Ryutaro Kodaira、Shinjiro Hara
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 56 Issue: 6S1 Pages: 06GH05-06GH05

    • DOI

      10.7567/jjap.56.06gh05

    • NAID

      210000147905

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] Transport Properties of MnAs/InAs Heterojunction and InAs Nanowires Formed by Selective-Area Growth2019

    • Author(s)
      Shinjiro Hara, Matthias T. Elm, Peter J. Klar
    • Organizer
      the 2019 Material Research Society (MRS) Spring Meeting, Phoenix, Arizona, USA, April 22-26, 2019, EP10.06.02
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Thickness and Aspect Ratio Dependences of Magnetic Domain Structures in Patterned CoFe Thin Films on GaAs (001) Substrates2019

    • Author(s)
      Keigo Teramoto, Ryoma Horiguchi, Yusuke Adachi, Masashi Akabori, Shinjiro Hara
    • Organizer
      the 2019 International Conference on Solid State Devices and Materials (SSDM 2019), Nagoya, Japan, September 2-5, 2019, PS-8-20
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anomalous Angle-Dependent Magnetoresistance in InAs Nanowires2019

    • Author(s)
      Patrick Uredat, Ryoma Horiguchi, Ryutaro Kodaira, Shinjiro Hara, Peter J. Klar, and Matthias T. Elm
    • Organizer
      the Nanowire Week 2019, Pisa, Italy, September 23-27, 2019, Tu4.4, p. 55
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Applied External Magnetic Field Dependence of Magnetic Domain Structures in Patterned CoFe Thin Films on GaAs (001) Substrates2019

    • Author(s)
      Keigo Teramoto, Ryoma Horiguchi, Yusuke Adachi, Masashi Akabori, Shinjiro Hara
    • Organizer
      the 32nd International Microprocesses and Nanotechnology Conference (MNC 2019), Hiroshima, Japan, October 28-31, 2019, 31C-8-1
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Aspect Ratio Dependence of Magnetization Switching in CoFe Nanolayers Patterned on GaAs (001) Substrates2019

    • Author(s)
      Ryoma Horiguchi, Keigo Teramoto, Yusuke Adachi, Masashi Akabori, Shinjiro Hara
    • Organizer
      the 8th International Symposium on Control of Semiconductor Interfaces (ISCSI-VIII), Sendai, Japan, November 27-30, 2019, WP2-20, pp. 53-54
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analyses of Magnetic Domains in MnAs Nanoclusters Grown by Selective-Area MOVPE2018

    • Author(s)
      Ryoma Horiguchi, Masaya Iida, Kohei Morita, Shinjiro Hara
    • Organizer
      the 19th International Conference on Metal-Organic Vapor Phase Epitaxy (ICMOVPE-XIX), Nara, Japan, June 3-8, 2018, 5B-3.6
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetization Characterization of Two MnAs Nanoclusters at Close Range in MnAs/InAs Heterojunction Nanowires2018

    • Author(s)
      Ryutaro Kodaira, Ryoma Horiguchi, Shinjiro Hara
    • Organizer
      the 19th International Conference on Metal-Organic Vapor Phase Epitaxy (ICMOVPE-XIX), Nara, Japan, June 3-8, 2018, 7C-3.6
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Selective-Area Growth and Transport Characterization of Vertical MnAs/InAs Heterojunction Nanowires2018

    • Author(s)
      Shinjiro Hara, Matthias T. Elm, Peter J. Klar
    • Organizer
      the 10th International Conference on Processing and Manufacturing of Advanced Materials (THERMEC 2018), Paris, France, July 8-13, 2018, H5-10
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Determing the Carrier Mobility in Single InAs Nanowires from Magnetotransport Measurements2018

    • Author(s)
      Patrick Uredat, Ryutaro Kodaira, Ryoma Horiguchi, Shinjiro Hara, Peter J. Klar, Matthias T. Elm
    • Organizer
      the 2018 International Conference on Solid State Devices and Materials (SSDM 2018), Tokyo, Japan, September 9-13, 2018, M-6-02
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dependence of Si Nanowire Orientation on Vapor-Liquid-Solid Growth Conditions2018

    • Author(s)
      Yuki Kitazawa, Ryutaro Kodaira, Ryoma Horiguchi, Wipakorn Jevasuwan, Naoki Fukata, Shinjiro Hara
    • Organizer
      the 31st International Microprocesses and Nanotechnology Conference (MNC 2018), Sapporo, Japan, November 13-16, 2018, 16P-11-111L
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Structural Investigation of Bended MnAs/InAs Heterojunction Nanowires2018

    • Author(s)
      Tetsuro Kadowaki, Ryutaro Kodaira, Shinjiro Hara
    • Organizer
      the 31st International Microprocesses and Nanotechnology Conference (MNC 2018), Sapporo, Japan, November 13-16, 2018, 16P-11-115L
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic Domain Structures Depending on Applied Magnetic Fields in MnAs Nanodisks Selectively-Grown on Si (111) Substrates2018

    • Author(s)
      Kozaburo Suzuki, Ryoma Horiguchi, Masaya Iida, Shinjiro Hara
    • Organizer
      the 31st International Microprocesses and Nanotechnology Conference (MNC 2018), Sapporo, Japan, November 13-16, 2018, 16P-11-116L
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Photoluminescence of Zn-Doped InP Nanowires: Mixing of Crystal Structures, Donor-Acceptor Pair Recombination, and Surface Effects2017

    • Author(s)
      Junichi Motohisa, Hiroki Kameda, Masahiro Sasaki, Shinjiro Hara, Katsuhiro Tomioka
    • Organizer
      the 29th International Conference on Defects in Semiconductors (ICDS 2017), Matsue, Japan, July 31-August 4, 2017, TuP-33
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic Domain Characterizations of MnAs Nanoclusters on Si (111) Substrate2017

    • Author(s)
      Masaya Iida, Ryoma Horiguchi, Kohei Morita, Shinjiro Hara
    • Organizer
      the 2017 International Conference on Solid State Devices and Materials (SSDM 2017), Sendai, Japan, September 19-22, 2017, PS-8-02
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Analysis of Bending Mechanism in MnAs/InAs Heterojunction Nanowires2017

    • Author(s)
      Tetsuro Kadowaki, Ryutaro Kodaira, Shinjiro Hara
    • Organizer
      the 2017 International Conference on Solid State Devices and Materials (SSDM 2017), Sendai, Japan, September 19-22, 2017, J-6-02
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrical Ttransport Properties of Single MnAs/InAs Hybrid Nanowires Grown by Selective-Area Metal-Organic Vapor Phase Epitaxy2017

    • Author(s)
      Patrick Uredat, Matthias T. Elm, Ryutaro Kodaira, Ryoma Horiguchi, Peter J. Klar, Shinjiro Hara
    • Organizer
      the 2017 Material Research Society (MRS) Fall Meeting, Boston, Massachusetts, USA, November 26-December 1, 2017, NM03.07.06
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Control of Bending Structures in MnAs/InAs Heterojunction Nanowires2017

    • Author(s)
      Ryutaro Kodaira, Tetsuro Kadowaki, Shinjiro Hara
    • Organizer
      the 2017 Material Research Society (MRS) Fall Meeting, Boston, Massachusetts, USA, November 26-December 1, 2017, NM03.14.17
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Size-Dependent Magnetic Domain Structure in MnAs Nanoclusters Selectively Grown on Si (111) Substrates Covered with Different Dielectric Mask Designs2017

    • Author(s)
      Ryoma Horiguchi, Masaya Iida, Kohei Morita, Shinjiro Hara
    • Organizer
      the 2017 Material Research Society (MRS) Fall Meeting, Boston, Massachusetts, USA, November 26-December 1, 2017, EM08.06.04
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Book] Fundamental Properties of Semiconductor Nanowires (分担執筆, Chapter名: Nanowire Field Effect Transistors)2020

    • Author(s)
      Junichi Motohisa, Shinjiro Hara
    • Total Pages
      57
    • Publisher
      Springer Nature AG.(Switzerland)
    • Related Report
      2019 Annual Research Report
  • [Book] Novel Compound Semiconductor Nanowires: Materials, Devices, and Applications, edited by Fumitaro Ishikawa and Irina Buyanova: "Ferromagnetic MnAs/III-V Hybrid Nanowires for Spintronics", Part II, Chapter 6, pp. 177-2202017

    • Author(s)
      Shinjiro Hara
    • Total Pages
      527
    • Publisher
      Pan Stanford Publishing Pte Ltd
    • ISBN
      9789814745765
    • Related Report
      2017 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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