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development of hybrid nanostructured devices based on spin-orbit interaction and elucidations of their functions

Research Project

Project/Area Number 20H02562
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 InstitutionNTT Basic Research Laboratories

Principal Investigator

Takase Keiko  日本電信電話株式会社NTT物性科学基礎研究所, 量子科学イノベーション研究部, 主任研究員 (60553245)

Co-Investigator(Kenkyū-buntansha) 内海 裕洋  三重大学, 工学研究科, 准教授 (10415094)
舘野 功太  日本電信電話株式会社NTT物性科学基礎研究所, 多元マテリアル創造科学研究部, 主任研究員 (20393796)
佐々木 智  日本電信電話株式会社NTT物性科学基礎研究所, フロンティア機能物性研究部, 主任研究員 (80393768)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥18,590,000 (Direct Cost: ¥14,300,000、Indirect Cost: ¥4,290,000)
Fiscal Year 2022: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2021: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2020: ¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Keywordsナノワイヤ / スピン軌道相互作用 / ショットノイズ / 電界効果トランジスタ / 量子ドット
Outline of Research at the Start

スピン軌道相互作用(SOI)は外部磁場がない状態でも電子に有効磁場として作用し電子スピンを回転させる量子相対論効果であり、近年SOIを活用した研究であるスピンFETや超伝導接合系におけるマヨラナ準粒子の提案・実証が注目されている。
本研究ではこれまで我々が実現したSOIの高効率ゲート制御の手法を活かし、III-V属半導体ナノワイヤを用いた複合型素子を開発する。さらに、高周波測定およびショットノイズ測定を用いて、巨大SOIを活用したナノ構造のスピン物性解明・マヨラナ準粒子検出を目指した研究を行う。

Outline of Final Research Achievements

In this study, we have developed various devices to obtain highly efficient electric-field control of spin-orbit interaction using III-V semiconductor nanowires that have large spin-orbit interaction. We have succeeded in highly efficient control of the spin-orbit interaction at low gate voltages, providing a prototype of a spin field-effect transistor that will be demonstrated in the future. We also developed a new type of device using conductive oxides for high-frequency applications, which is expected to integrate spintronics and optoelectronics. We also performed high-sensitivity current fluctuation measurements in a superconductor-nanowire quantum dot device and clarified the importance of spin-flip relaxation in quantum cotunneling from both experimental and theoretical perspectives. In addition, the effect of spin filtering was also investigated.

Academic Significance and Societal Importance of the Research Achievements

低ゲート電圧でスピン軌道相互作用の高効率制御に成功したことは、将来的に電流ではなくてスピンでトランジスタのON/OFFを切り替えるスピン電界効果トランジスタの実現につながり、低消費電力社会の実現にも貢献できる。さらに、スピントロニクスとオプトエレクトロニクスの融合が期待できる素子構造は新たな産業応用の基盤となる可能性がある。また、量子コトンネリングにおけるスピン反転緩和の解明は、学理構築に重要なだけでなく将来的な量子コンピュータの要素技術開発にも役立つと期待される。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (27 results)

All 2023 2022 2021 2020 Other

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results) Presentation (18 results) (of which Int'l Joint Research: 6 results,  Invited: 4 results) Remarks (4 results) Patent(Industrial Property Rights) (1 results) (of which Overseas: 1 results)

  • [Journal Article] Spin‐Filtering in a p‐Orbital Helical Atomic Chain2022

    • Author(s)
      Utsumi Yasuhiro、Kato Takemitsu、Entin‐Wohlman Ora、Aharony Amnon
    • Journal Title

      Israel Journal of Chemistry

      Volume: 62 Issue: 11-12

    • DOI

      10.1002/ijch.202200107

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Quantum transport and its manipulation in semiconductor quantum devices2021

    • Author(s)
      Takase Keiko
    • Journal Title

      Journal of The Society of Japanese Women Scientists

      Volume: 21 Issue: 0 Pages: 30-40

    • DOI

      10.5939/sjws.21004

    • NAID

      130007997333

    • ISSN
      1349-4449, 2186-3776
    • Year and Date
      2021-03-12
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Highly Efficient Electric-field Control of Rashba Spin-orbit Interaction in Semiconductor Nanowire Field-effect Transistors2021

    • Author(s)
      TAKASE Keiko、TATENO Kouta、SASAKI Satoshi
    • Journal Title

      Vacuum and Surface Science

      Volume: 64 Issue: 3 Pages: 118-125

    • DOI

      10.1380/vss.64.118

    • NAID

      130007996738

    • ISSN
      2433-5835, 2433-5843
    • Year and Date
      2021-03-10
    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Electrical tuning of the spin-orbit interaction in nanowire by transparent ZnO gate grown by atomic layer deposition2021

    • Author(s)
      Takase Keiko、Tateno Kouta、Sasaki Satoshi
    • Journal Title

      Applied Physics Letters

      Volume: 119 Issue: 1

    • DOI

      10.1063/5.0051281

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 新奇半導体材料における量子輸送およびスピン軌道相互作用制御の研究2023

    • Author(s)
      高瀬恵子
    • Organizer
      日本物理学会2023年春季大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] CISS効果により有限分子鎖両端で誘起される電子状態の解析2023

    • Author(s)
      加藤 健晃, 内海裕洋, Amnon Aharony, Ora Entin-Wohlman
    • Organizer
      日本物理学会 2023年春季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 半導体ナノワイヤを用いたスピンオービトロニクスの開拓2022

    • Author(s)
      高瀬恵子
    • Organizer
      2022年度第2回BC、MtM合同委員会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] n-SiC上にエピタキシャル成長したAlN薄膜による高倍音バルク音響共振器の作製と評価2022

    • Author(s)
      黒子めぐみ, 畑中大樹,太田竜一, 高瀬恵子, 山口浩司,谷保芳孝, 岡本創
    • Organizer
      第83回応用物理学会秋季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] High-overtone bulk acoustic resonator with epitaxial AlN layergrown on n-SiC2022

    • Author(s)
      Megumi Kurosu, Daiki Hatanaka, Ryuichi Ota, Keiko Takase, Hiroshi Yamaguchi, Yoshitaka Taniyasu, and Hajime Okamoto
    • Organizer
      35th International Microprocesses and Nanotechnology Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] カイラル分子の螺旋対称性とCISS効果2022

    • Author(s)
      加藤健晃, 内海裕洋, Ora Entin-WohlmanA, Amnon Aharony
    • Organizer
      日本物理学会 2022年秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] CISS効果により有限分子鎖両端で誘起される電子状態の解析2022

    • Author(s)
      加藤 健晃, 内海裕洋, Amnon Aharony, Ora Entin-Wohlman
    • Organizer
      ISSPワークショップ「カイラル物質科学の新展開」
    • Related Report
      2022 Annual Research Report
  • [Presentation] SiC上ナノ構造グラフェンにおけるチューリング・パターンおよび拡散律速凝集モデル解析2022

    • Author(s)
      高瀬恵子
    • Organizer
      日本物理学会第77回年次大会(2022年)
    • Related Report
      2021 Annual Research Report
  • [Presentation] 透明電極を用いたゲート・オール・アラウンド型コアシェルナノワイヤFETにおけるスピン軌道相互作用制御2021

    • Author(s)
      高瀬恵子, 舘野功太, 佐々木智
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 超伝導・InAsナノワイヤ複合型量子ドットにおけるコトンネリング・ピークの偶奇性効果2021

    • Author(s)
      高瀬恵子, 芦川耶眞登, 章国強, 舘野功太, 佐々木智
    • Organizer
      日本物理学会2021年秋季大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Spin-orbit interaction engineering in gate-all-around core-shell nanowire2021

    • Author(s)
      Keiko Takase, Kouta Tateno, Satoshi Sasaki
    • Organizer
      EP2DS-24/MSS-20 Joint Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Parity-dependent cotunneling spectroscopy and shot noise in a hybrid superconductor-nanowire quantum dot: a role of spin-flip effect2021

    • Author(s)
      Keiko Takase, Yasuhiro Utsumi,Yamato Ashikawa, Guoqiang Zhang, Kouta Tateno, Yuma Okazaki, Satoshi Sasaki
    • Organizer
      EP2DS-24/MSS-20 Joint Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ナノワイヤを用いたスピン軌道相互作用エンジニアリング2021

    • Author(s)
      高瀬恵子
    • Organizer
      2021年日本表面真空学会学術講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Tunable giant spin-orbit interaction in gate-all-around core-shell nanowire2021

    • Author(s)
      K. Takase, S. Tateno, and S. Sasaki
    • Organizer
      International Symposium on Novel maTerials and quantum Technologies (ISNTT2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spin Selectivity through Time-reversal Symmetric Helical Junctions2021

    • Author(s)
      Y. Utsumi, O. Entin-Wohlman, A. Aharony
    • Organizer
      International Symposium on Novel maTerials and quantum Technologies (ISNTT2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 半導体量子ナノ構造における量子輸送とスピン軌道相互作用制御2020

    • Author(s)
      高瀬恵子
    • Organizer
      日本女性科学者の会 学術大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Gate control of spin-orbit interaction in a nanowire gate-all-around FET with atomic-layer-deposited Al2O3/ZnO gate-stack2020

    • Author(s)
      Keiko Takase, Kouta Tateno, Satoshi Sasaki
    • Organizer
      2020 International Conference on Solid States Devices and Materials (SSDM2020)
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 量子ドットのsuper-Poissonian shot noiseにおけるスピン・フリップ効果を取り入れた解析解導出と数値計算マッピング2020

    • Author(s)
      高瀬恵子, 内海裕洋
    • Organizer
      日本物理学会2020年秋季大会
    • Related Report
      2020 Annual Research Report
  • [Remarks] 個人ホームページ(NTT物性科学基礎研究所)

    • URL

      http://www.brl.ntt.co.jp/people/takase/

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report 2020 Annual Research Report
  • [Remarks] 量子科学イノベーション研究部 量子固体物性研究グループホームページ(NTT物性科学基礎研究所)

    • URL

      http://www.brl.ntt.co.jp/group/butsuryo-g/index-j.html

    • Related Report
      2022 Annual Research Report
  • [Remarks] NTT物性科学基礎研究所ホームページ

    • URL

      http://www.brl.ntt.co.jp/J/index.html

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report 2020 Annual Research Report
  • [Remarks] 量子科学イノベーション研究部 量子固体物性研究グループホームページ(NTT物性科学基礎研究所)

    • URL

      http://www.brl.ntt.co.jp/J/index.html

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Patent(Industrial Property Rights)] ナノ構造デバイスの作製方法2022

    • Inventor(s)
      舘野功太、滝口雅人、佐々木智、江端一晃、熊倉一英
    • Industrial Property Rights Holder
      舘野功太、滝口雅人、佐々木智、江端一晃、熊倉一英
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2022 Annual Research Report
    • Overseas

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Published: 2020-04-28   Modified: 2024-01-30  

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