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Observation and control of valley-spin-polarized current at quantum confinement structures in graphene

Research Project

Project/Area Number 18H01812
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 28020:Nanostructural physics-related
Research InstitutionChiba University

Principal Investigator

Aoki Nobuyuki  千葉大学, 大学院工学研究院, 教授 (60312930)

Co-Investigator(Kenkyū-buntansha) 音 賢一  千葉大学, 大学院理学研究院, 教授 (30263198)
Project Period (FY) 2018-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2019: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2018: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Keywords量子ポイントコンタクト / 2層グラフェン / 量子化伝導度 / 遷移金属ダイカルコゲナイド / WSe2 / バレー偏極 / スピン偏極 / スピン・軌道相互作用 / ゼロ磁場スピン分裂 / 2次元物質 / 量子伝導現象 / グラフェン / 高移動度化 / 量子閉じ込め構造 / バレー / 垂直電場印加 / 高移動度 / 量子閉じ込め / バレースピン / カー効果 / 電界閉じ込め / 六方晶窒化ホウ素
Outline of Final Research Achievements

In this study, a high mobility bi-layer graphene (BLGr) laminated by hexagonal boron-nitride (h-BN) was used for a study of quantum point contact (QPC) which is electro-statically confined one-dimensional (1-d) channel with a dual gate structure. In the QPC structure formed by BLGr, a valley-polarized quantization in units of 2e2 divided by h has been observed, which suggests a valley polarized transport by the 1-d confinement. In addition, in the QPC structure with the 3-layer WSe2 as the channel, we have observed the quantized conductance steps with the units of e2 divided by h, which suggest both valley and spin polarized transport at zero-magnetic field condition.

Academic Significance and Societal Importance of the Research Achievements

近年,トポロジカル現象への注目が高くなってきている中で,電荷・スピンに次ぐ自由度としてバレーの効果を利用したバレーとロニクスが注目されている。円偏光の光照射を,垂直電場の印加によりK点とK'点のバレーの対称性を意図的に崩すことで幾何学的位相(ベリー位相)に差が生じ,結果的に試料内部に内部磁場が発生し,これがホール効果に類似したバレーホール効果として観測されてきている。本研究では,スプリットゲート構造という電気的な制御法によりバレー偏極のみならずスピンまで偏極した電流を実現したことから,新たなスピントロニクス/バレートロにクスの実現に役立つ成果といえる。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • Research Products

    (78 results)

All 2022 2021 2020 2019 2018 Other

All Int'l Joint Research (13 results) Journal Article (12 results) (of which Int'l Joint Research: 11 results,  Peer Reviewed: 12 results,  Open Access: 3 results) Presentation (49 results) (of which Int'l Joint Research: 18 results,  Invited: 3 results) Book (2 results) Remarks (2 results)

  • [Int'l Joint Research] ニューヨーク州立大学バッファロー校/アリゾナ州立大学(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 成均館大学(韓国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] 国立台湾大学/忠興大学/国立嘉儀大学(その他の国・地域)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] ニューヨーク州立大学バッファロー校/アリゾナ州立大学(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 成均館大学(韓国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] 国立台湾大学/忠興大学(その他の国・地域 台湾)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] ニューヨーク州立大学バッファロー校/アリゾナ州立大学(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 成均館大学(韓国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 国立台湾大学/中原大学(その他の国・地域 台湾)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] 物質・材料研究機構/横浜市立大学/埼玉大学(日本)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] ニューヨーク州立大学バッファロー校(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 成均館大学(韓国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 国立台湾大学/中原大学/中央研究院(その他の国・地域(台湾))

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Enhanced Performance of WS2 Field-Effect Transistor throughMono and Bilayer h-BN Tunneling Contacts2022

    • Author(s)
      Nhat Anh Nguyen Phan, Hamin Noh, Jihoon Kim, Yewon Kim, Hanul Kim, Dongmok Whang, Nobuyuki Aoki, Kenji Watanabe, Takashi Taniguchi, and Gil-Ho Kim
    • Journal Title

      Nano Micro Small

      Volume: 2022 Issue: 13

    • DOI

      10.1002/smll.202105753

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quantized exciton-exciton annihilation in monolayer on substrate with atomically flat terraces2021

    • Author(s)
      Yuto Kajino, Kohei Sakanashi, Nobuyuki Aoki, Kenji Watanabe, Takashi Taniguchi, Kenichi Oto, and Yasuhiro Yamada
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 24

    • DOI

      10.1103/physrevb.103.l241410

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Valley polarized conductance quantization in bilayer graphene narrow quantum point contact2021

    • Author(s)
      Kohei Sakanashi, Naoto Wada, Kentaro Murase, Kenichi Oto, Gil-Ho Kim, Kenji Watanabe, Takashi Taniguchi, Jonathan P. Bird, David K. Ferry, Nobuyuki Aoki
    • Journal Title

      Applied Physics Letters

      Volume: 118 Issue: 26 Pages: 263102-263102

    • DOI

      10.1063/5.0052845

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High mobility field-effect transistors based on MoS2 crystals grown by the flux method2021

    • Author(s)
      Vilas Patil, Jihyun Kim, Khushabu Agrawal, Tuson Park, Junsin Yi, Nobuyuki Aoki, Kenji Watanabe, Takashi Taniguchi, Gil-Ho Kim
    • Journal Title

      Nanotechnology

      Volume: 32 Issue: 32 Pages: 325603-325603

    • DOI

      10.1088/1361-6528/abf6f1

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Signature of spin-resolved quantum point contact in p-type trilayer WSe2 van der Waals heterostructure2021

    • Author(s)
      Kohei Sakanashi, Peter Kruger, Kenji Watanabe, Takashi Taniguchi, Gil-Ho Kim, David K. Ferry, Jonathan P. Bird, and Nobuyuki Aoki
    • Journal Title

      Nano Letters

      Volume: 21 Issue: 18 Pages: 7534-7541

    • DOI

      10.1021/acs.nanolett.1c01828

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Remote Mesoscopic Signatures of Induced Magnetic Texture in Graphene2021

    • Author(s)
      N. Arabchigavkani, R. Somphonsane, H. Ramamoorthy, G. He, J. Nathawat, S. Yin, B. Barut, K. He, M. D. Randle, R. Dixit, K. Sakanashi, N. Aoki , K. Zhang, L. Wang, W.-N. Mei, P. A. Dowben , J. Fransson, and J. P. Bird
    • Journal Title

      Physical Review Letters

      Volume: 126 Issue: 8 Pages: 086802-086802

    • DOI

      10.1103/physrevlett.126.086802

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Investigation of plant leaf-derived graphene quantum dot clusters via magnetic force microscopy2021

    • Author(s)
      Chuang Chiashain、Matsunaga Masahiro、Wang Tian-Hsin、Roy Prathik、Ravindranath Rini、Ananthula Meenakshi、Aoki Nobuyuki
    • Journal Title

      Nanotechnology

      Volume: 32 Issue: 24 Pages: 245704-245704

    • DOI

      10.1088/1361-6528/abeadb

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Investigation of laser-induced-metal phase of MoTe2 and its contact property via scanning gate microscopy2020

    • Author(s)
      Kohei Sakanashi, Hidemitsu Ouchi, Kota Kamiya, Peter Kruger, Katsuhiko Miyamoto, Takashige Omatsu, Keiji Ueno, Kenji Watanabe, Takashi Taniguchi, Jonathan P. Bird, and Nobuyuki Aoki
    • Journal Title

      Nanotechnology

      Volume: 31 Issue: 20 Pages: 205205-205205

    • DOI

      10.1088/1361-6528/ab71b8

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Conductance interference effects in an electron-beam-resist-free chemical vapor deposition graphene device sandwiched between two h-BN sheets2019

    • Author(s)
      Chuang Chiashain、Mineharu Masaaki、Matsunaga Masahiro、Liu Chieh-Wen、Wu Bi-Yi、Kim Gil-Ho、Watanabe Kenji、Taniguchi Takashi、Liang Chi-Te、Aoki Nobuyuki
    • Journal Title

      Carbon

      Volume: 154 Pages: 238-243

    • DOI

      10.1016/j.carbon.2019.07.057

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Transient Response of h-BN-Encapsulated Graphene Transistors: Signatures of Self-Heating and Hot-Carrier Trapping2019

    • Author(s)
      J. Nathawat, M. Zhao, C.-P. Kwan, S. Yin, N. Arabchigavkani, M. Randle, H. Ramamoorthy, G. He, R. Somphonsane, N. Matsumoto, K. Sakanashi, M. Kida, N. Aoki, Z. Jin, Y. Kim, G.-H. Kim, K. Watanabe, T. Taniguchi, J. P Bird
    • Journal Title

      ACS Omega

      Volume: 4 Issue: 2 Pages: 4082-4090

    • DOI

      10.1021/acsomega.8b03259

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Hot carriers in CVD-grown graphene device with a top h-BN layer2018

    • Author(s)
      C. Chuang, M. Mineharu, N. Matsumoto, M. Matsunaga, C.-W. Liu, B.-Y. Wu, Gil-Ho Kim, L.-H. Lin, Y. Ochiai, K. Watanabe, T. Taniguchi, C.-T. Liang and N. Aoki
    • Journal Title

      Journal of Nanomaterials

      Volume: 2018 Pages: 1-7

    • DOI

      10.1155/2018/5174103

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Large, non-saturating magnetoresistance in single layer chemical vapor deposition graphene with an h-BN capping layer2018

    • Author(s)
      Chiashain Chuang, C.-T. Liang, Gil-Ho Kim, R.E. Elmquist, Y. Yang, Y.P. Hsieh, Dinesh K. Patel, K. Watanabe, T. Taniguchi, and N. Aoki
    • Journal Title

      Carbon

      Volume: 136 Pages: 211-216

    • DOI

      10.1016/j.carbon.2018.04.067

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 剥離により得られた2H-NbS2薄膜におけるBKT相転移の評価2022

    • Author(s)
      謝 天順, 坂梨 昂平, 上野 啓司, 青木 伸之
    • Organizer
      2022年第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 有機単分子膜の挿入によるTMDC-FETにおけるコンタクト特性の改善2022

    • Author(s)
      坂梨昂平, 柯梦南, 青木伸之
    • Organizer
      2022年第69回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Study on the contact properties between the semi-metallic phase and the semiconducting phase of MoTe22021

    • Author(s)
      Tianshun Xie, Shuntaro Ikeda, Kohei Sakanashi, Keiji Ueno, Peter Kruger and Nobuyuki Aoki
    • Organizer
      ICN+T 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] モノリシックデバイス応用に向けたレーザー照射によるMoTe2 の構造制御と極性制御2021

    • Author(s)
      青木伸之
    • Organizer
      グラフェンコンソーシアム第26回研究講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] グラフェン/WSe2ヘテロ接合における磁気輸送特性評価2021

    • Author(s)
      横井和史, 坂梨昂平, Gil-Ho Kim, 渡邊賢司, 谷口尚, 青木伸之
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Valley polarized transport at quantum point contact in bilayer graphene,2021

    • Author(s)
      Nobuyuki Aoki, Kohei Sakanashi, Yukichi Kamita, Kenichi Oto, Gil-Ho Kim, Kenji Watanabe, Takashi Taniguchi, Jonathan P. Bird and David K. Ferry
    • Organizer
      The 12th Annual Recent Progress in Graphene and Two-dimensionalMaterials Research Conference (RPGR2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fully spin-resolved quantum point contact in trilayer WSe2 van der Waals heterostructure2021

    • Author(s)
      Kohei Sakanashi, Peter Kruger, Kenji Watanabe, Takashi Taniguchi, Gil-HoKim, David K. Ferry, Jonathan P. Bird, and Nobuyuki Aoki
    • Organizer
      The 12th Annual Recent Progress in Graphene and Two-dimensionalMaterials Research Conference (RPGR2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 光渦レーザー誘起前方転写法によってプリントされたグラフェン2021

    • Author(s)
      佐々木 遥晃, 川口 晴生, 宮本 克彦, 尾松 孝茂, 青木 伸之
    • Organizer
      第31回日本MRS年次大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 強誘電物質でアシストされた2層グラフェン量子ポイントコンタクトの輸送特性2021

    • Author(s)
      紙田祐吉, 坂梨昂平, 紙田祐吉, G.-H.Kim, 渡邊賢司, 谷口尚, J.P.バード, D.K.フェリー, 青木伸之
    • Organizer
      日本物理学会第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 真空中でレーザー照射により得られた1T-MoTe2と2H-MoTe2のコンタクト特性の評価2021

    • Author(s)
      謝 天順, 池田 駿太郎, 坂梨 昂平, 上野 啓司, 青木 伸之
    • Organizer
      2021年第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] p型WSe2における量子ポイントコンタクトの実現2021

    • Author(s)
      坂梨 昂平, クリューガー ピーター, バード ジョナサン, 渡邊 賢司, 谷口 尚, キム ギルホ, 青木 伸之
    • Organizer
      2021年第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] MoTe2-TFET におけるp 型動作の実現に向けた取り組み2021

    • Author(s)
      池田 駿太郎, 大内 秀益, 坂梨 昂平, クリューガー ピーター, 渡邊 賢司, 谷口 尚, バード ジョナサン, 青木 伸之
    • Organizer
      2021年第68回応用物理学会春季学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Open quantum dot in encapsulated graphene2021

    • Author(s)
      Kohei Sakanashi, Naoto Wada, Kenji Watanabe, Takashi Taniguchi, Gil-Ho Kim, David K. Ferry, Jonathan P. Bird, Liang Huang, and Nobuyuki Aoki
    • Organizer
      APS March Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 第3のゲート構造を有する2層グラフェン量子ポイントコンタクトの作製と特性評価2020

    • Author(s)
      青木伸之, 村瀬健太郎, 坂梨昂平, 紙田祐吉, G.-H.キム, 渡邊賢司, 谷口尚, J.P.バード, D.K.フェリー
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] グラフェンバリスティック開放系量子ドットにおける量子伝導現象2020

    • Author(s)
      坂梨昂平, X. Chen, 和田直人, D. K. Ferry, J. P. Bird, G-h. Kim, 渡邊賢司, 谷口尚, L. Huang, 青木伸之
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] MoTe2に高強度レーザー照射した時の構造に関する理論研究2020

    • Author(s)
      齊藤雄一朗, 坂梨昂平, 青木伸之, Peter Kruger
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 量子デバイス応用に向けたツイスト型2層グラフェンの作製と特性評価2020

    • Author(s)
      福島 僚, 坂梨 昂平, 和田 直人, 渡邊 賢司, 谷口 尚, Gil-Ho Kim, バード ジョナサン, 青木 伸之
    • Organizer
      第81回応用物理学会秋期学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 単層グラフェンにおける開放系量子ドットの輸送特性2020

    • Author(s)
      坂梨 昂平, 和田 直人, キム ギルホ, バード ジョナサン, フェリー デイビッド, 渡邊 賢司, 谷口 尚, 青木 伸之
    • Organizer
      第81回応用物理学会秋期学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 低バリアの実現に向けた1T’ -MoTe2と2H-MoTe2のコンタクト特性の評価2020

    • Author(s)
      謝 天順, 大内 秀益, 坂梨 昂平, 上野 啓司, 青木 伸之
    • Organizer
      第81回応用物理学会秋期学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] hBNをゲート絶縁膜としたTMD-TFETの高性能化に関する研究2020

    • Author(s)
      池田 駿太郎, 大内 秀益, 坂梨 昂平, クリューガー ピーター, 渡邊 賢司, 谷口 尚, バード ジョナサン, 青木 伸之
    • Organizer
      第81回応用物理学会秋期学術講演会
    • Related Report
      2020 Annual Research Report
  • [Presentation] OVLIFT法で転写したグラフェンインクの物性評価2020

    • Author(s)
      佐々木 遥晃,池田 駿太郎,宮本 克彦,尾松 孝茂,青木 伸之
    • Organizer
      第30回日本MRS年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 1T'-MoTe2と2H-MoTe2のコンタクトの特性の評価2020

    • Author(s)
      謝 天順、大内 秀益、坂梨 昂平、上野 啓司、青木 伸之
    • Organizer
      応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ツイスト型二層グラフェンFETの作製と磁気輸送特性評価2020

    • Author(s)
      和田直人, 坂梨昂平, G.-H. Kim, 渡邊賢司, 谷口尚, J.P.バード, 青木伸之
    • Organizer
      日本物理学会, 第75回年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Laser Doping Effect and TFET Device Application of MoTe2 Crystal2019

    • Author(s)
      Nobuyuki Aoki, Hidemitsu Ouchi, Kohei Sakanashi, Kota Kamiya, Peter Kruger, Katsuhiko Miyamoto, Takashige Omatsu, Jonathan P. Bird
    • Organizer
      The 21st International Conference on Electron Dynamics in Semiconductors (EDISON21)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrostatically Confined Quantum Structures in Bilayer Graphene2019

    • Author(s)
      Kohei Sakanashi, Naoto Wada, Kentaro Murase, Younsub Kim, Gil-ho Kim, Jonathan P. Bird, Kenji Watanabe, Takashi Taniguchi, Nobuyuki Aoki
    • Organizer
      The 21st International Conference on Electron Dynamics in Semiconductors (EDISON21)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of high-quality graphene nanoribbon via silver nanowire shadow-masking2019

    • Author(s)
      Kensuke Aoki, Kohei Sakanashi, Nobuyuki Aoki
    • Organizer
      The 21st International Conference on Electron Dynamics in Semiconductors (EDISON21)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 高移動度2層グラフェンに対する電界閉じ込めによる量子構造の形成2019

    • Author(s)
      坂梨昂平, 村瀬健太郎, 和田直人, G.-H. Kim, 渡邊賢司, 谷口尚, J.P. Bird, 青木伸之
    • Organizer
      日本物理学会秋季大会
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 二層グラフェンにおける電界閉じ込めによる量子構造の実現2019

    • Author(s)
      坂梨 昂平, 和田 直人, バード ジョナサン, 渡邊 賢司, 谷口 尚, キム ギルホ, 青木 伸之
    • Organizer
      応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] レーザー照射によるTMDC結晶へのp/nドーピング制御とモノリシックTFET応用2019

    • Author(s)
      大内 秀益, 神谷 航太, 坂梨 昴平, ゲエヌエ トーマス, クリューガー ピーター,宮本 克彦, 尾松 孝茂, バード ジョナサン, 青木 伸之
    • Organizer
      応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] MoTe2を用いたIn-Plane TFETの作製2019

    • Author(s)
      大内 秀益, 坂梨 昂平, クリューガー ピーター, バード ジョナサン, 青木 伸之
    • Organizer
      応用物理学会秋季学術講演会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Heavy Doping Effect in MoTe2 Crystal by High Density Laser Irradiation and TFET Device Application2019

    • Author(s)
      Nobuyuki Aoki, Hidemitsu Ouchi, Kohei Sakanashi, Kota Kamiya, Peter Kruger, Katsuhiko Miyamoto, Takashige Omatsu, and Jonathan P. Bird
    • Organizer
      The 11th Annual Recent Progress in Graphene and Two-dimensional Materials Research Conference (RPGR2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electrostatically Confined Quantum Structures in Bilayer Graphene2019

    • Author(s)
      Kohei Sakanashi, Naoto Wada, Yukichi Kamita, Ryo Fukushima, Gil-Ho Kim, Jonathan P. Bird, Kenji Watanabe, Takashi Taniguchi and Nobuyuki Aoki
    • Organizer
      The 11th Annual Recent Progress in Graphene and Two-dimensional Materials Research Conference (RPGR2019)
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Doping effect and phase transition of MoTe2by laser irradiation and TFET application2019

    • Author(s)
      N. Aoki, H. Ouchi, K. Sakanashi, K. Kamiya, P. Kruger, K. Miyamoto, T. Omatsu, and J. P. Bird
    • Organizer
      International Symposium on Spectro-Microscopy of Functional Materials and Interfaces
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 銀ナノワイヤーのシャドーマスクを用いた短チャネルグラフェンナノリボンの作製2019

    • Author(s)
      青木 健輔, 坂梨 昂平,青木伸之
    • Organizer
      第29回日本MRS年次大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] エネルギーギャップの導入にむけた銀ナノワイヤーを用いた高品質グラフェンナノリボンの作製2019

    • Author(s)
      青木健輔, 青木伸之
    • Organizer
      第56回フラーレン・ナノチューブ・グラフェン総合シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] エネルギーギャップの導入にむけた銀ナノワイヤーによるグラフェンナノリボンの作製2019

    • Author(s)
      青木健輔, 青木伸之
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 二層グラフェンにおける電界閉じ込めによる電子波ダイナミクスの観測2019

    • Author(s)
      坂梨昂平, 和田直人, バード ジョナサン, キム ギルホ, 渡邉賢司, 谷口尚, 青木伸之:
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 垂直電場印加による2層グラフェンにおける量子ポイントコンタクトの形成と磁場印加効果2019

    • Author(s)
      村瀬健太郎, 荒川友貴, 坂梨昂平, 音賢一, キム ユンサム, キム ギルホ, 渡邉賢司, 谷口尚, 青木伸之
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] TMD材料を用いたトンネル電界効果トランジスタの作製2019

    • Author(s)
      大内秀益, 神谷航大, 坂梨昂平, グエヌエ トマス, クリューガー ピーター, バード ジョナサン, 渡邉賢司, 谷口尚, 青木伸之
    • Organizer
      第66回応用物理学会春季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Control of Electrical Properties of MoTe2-FET by Laser Irradiation and Device Application2018

    • Author(s)
      Nobuyuki Aoki
    • Organizer
      SAINT Seminar, SKKU
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Evaluation of contact properties for semiconducting 2H phase of MoTe2 via scanning gate microscopy2018

    • Author(s)
      K. Sakanashi, H. Ouchi, K. Kamiya, T. Yamanaka, T. Omatsu, K. Ueno, J. P. Bird and N. Aoki
    • Organizer
      9th Graphene and 2D Materials Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Control of FET Property by Laser Irradiation and Device Application of MoTe2 Crystal2018

    • Author(s)
      K. Kamiya, H. Ouchi, K. Sakanashi, K. Ueno, T. Guehenneux, P. Kruger, T. Omatsu, J. P. Bird and N. Aoki
    • Organizer
      9th Graphene and 2D Materials Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 垂直電場印加による2層グラフェンにおける量子ポイントコンタクトの形成2018

    • Author(s)
      荒川友貴, 村瀬健太郎, 坂梨昂平, 松本直樹, Y.-S. Kim, G.-H. Kim, 渡邊賢司, 谷口尚, D.K. Ferry, J.P. Bird, 青木伸之
    • Organizer
      日本物理学会2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] MoTe2に対するレーザー照射によるp/nドーピング2018

    • Author(s)
      神谷航太, 大内秀益, 坂梨昂平, ゲエヌエ トーマス, クリューガー ピーター, ジョナサン P.バード, 青木伸之
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] MoTe2を用いたトンネル電界効果トランジスタの作製2018

    • Author(s)
      大内秀益, 神谷航太, 坂梨昂平, ゲエヌエ トーマス, クリューガー ピーター, ジョナサン P.バード, 青木伸之
    • Organizer
      第79回応用物理学会秋季学術講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Carrier Polarity Control of MoTe2 Crystal by Laser Irradiation and Device Application2018

    • Author(s)
      K. Kamiya, H. Ouchi, K. Sakanashi, K. Ueno, P. Kruger, K. Miyamoto, T. Omatsu, J.P. Bird and N. Aoki
    • Organizer
      31st International Microprocesses and Nanotechnology Conference (MNC 2018)
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of quantum point contact in bilayer graphene by application of vertical electric field2018

    • Author(s)
      Kentaro Murase, Kohei Sakanashi, Tomoki Arakawa, Naoki Matsumoto, Yong S. Kim, Geun H. Kim, Kenji Watanabe, Takashi Taniguchi, Jonathan P. Bird, D. K. Ferry, Kenichi Oto and Nobuyuki Aoki
    • Organizer
      2018 Ajou University-Chiba University Joint Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of ultra-fine graphene nanoribbons by silver nanowire shadowmasking2018

    • Author(s)
      Kensuke Aoki, Benjamin S. Piazza, and Nobuyuki Aoki
    • Organizer
      2018 Ajou University-Chiba University Joint Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Carrier Control and Device Application of MoTe2 Crystal by Laser Irradiation2018

    • Author(s)
      Nobuyuki Aoki, Kota Kamiya, Hidemitsu Ouchi, Kohei Sakanashi, Peter Kr?ger, Katsuhiko Miyamoto, Takashige Omatsu and Jonathan P. Bird
    • Organizer
      2018 Ajou University-Chiba University Joint Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Book] Fullerene Nanowhiskers Second Edition, Chapter 162019

    • Author(s)
      Yuichi Ochiai, and Nobuyuki Aoki
    • Total Pages
      22
    • Publisher
      CRC Press
    • Related Report
      2018 Annual Research Report
  • [Book] Molecular Technology, Volume 3: Materials Innovation: Chapter 1 Control of Electronic Property of C60 Fullerene via Polymerization2019

    • Author(s)
      Nobuyuki Aoki
    • Total Pages
      17
    • Publisher
      John Wiley & Sons
    • Related Report
      2018 Annual Research Report
  • [Remarks] Quantum Nanodevice Laboratory Aoki Group

    • URL

      https://adv.chiba-u.jp/nano/qnd/index.html

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report 2019 Annual Research Report
  • [Remarks] Quantum Nanodevice Laboratory Aoki Group

    • URL

      http://adv.chiba-u.jp/nano/qnd/index.html

    • Related Report
      2018 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2023-01-30  

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