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Formation and transport of persistent spin helix state in GaAs/AlGaAs quantum wires

Research Project

Project/Area Number 24656003
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeSingle-year Grants
Research Field Applied materials science/Crystal engineering
Research InstitutionUniversity of Tsukuba

Principal Investigator

OHNO Yuzo  筑波大学, 数理物質系, 教授 (00282012)

Co-Investigator(Kenkyū-buntansha) YAMANOUCHI Michihiko  東北大学, 電気通信研究所, 助教 (40590899)
Project Period (FY) 2012-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsスピントロニクス / 永久スピン旋回状態 / 顕微カー回転測定 / GaAs / スピン緩和 / スピン永久旋回状態 / スピン・軌道相互作用 / GaAs/AlGaAsヘテロ構造 / 動的核スピン分極
Research Abstract

Spin-orbit interaction (SOI) plays important roles in the field of spintronics because the SOI field enables for spin manipulation and causes spin relaxation. In this study, using time-resolved Kerr rotation measurement, we investigate ensemble spin dynamics in wires made from a modulation-doped AlGaAs/GaAs QW in which both Dresselhaus and Rashba SOIs coexist. In addition, we perform the time- and spatially-resolved Kerr rotation measurement to observe the spatiotemporal evolution of photoexcited spins, and demonstrated gate-controlled spin distribution of a two-dimensional electron gas with a top gate electrode.

Report

(3 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • Research Products

    (14 results)

All 2014 2013 2012 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (10 results) Remarks (1 results)

  • [Journal Article] Direct mapping of photoexcited local spins in a modulation-doped GaAs/AlGaAs wires2014

    • Author(s)
      Jun Ishihara, Yuzo Ohno, and Hideo Ohno
    • Journal Title

      Japanese Jounal of Applied Physics

      Volume: 53 Issue: 4S Pages: 04EM04-04EM04

    • DOI

      10.7567/jjap.53.04em04

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] A strong anisotropy of spin dephasing time of quasi-one dimensional electron eas in modulation-doned GaAs/AlGaAs wires2013

    • Author(s)
      Jun Ishihara, Masaaki Ono, Yuzo Ohno, and Hideo Ohno
    • Journal Title

      Applied Physics Letters

      Volume: 102 Issue: 21

    • DOI

      10.1063/1.4807171

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Coherent Manipulation of Nuclear Spins in Semiconductors with an Electric Field2013

    • Author(s)
      M. Ono
    • Journal Title

      Applied Physics Express

      Volume: 6 Pages: 33002-33002

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] Mapping of photoexcited local spins in a modulation-doped GaAs/AlGaAs wires2013

    • Author(s)
      J. Ishihara, Y. Ohno, and H. Ohno
    • Organizer
      2013 International Conference on the Solid State Devices and Materials (SSDM2013)
    • Place of Presentation
      Hilton Fukuoka Sea Hawk, Fukuoka, Japan, (M-4-2)
    • Related Report
      2013 Final Research Report
  • [Presentation] Wire width dependence of suppressed spin dephasing in modulation-doped GaAs/AlGaAs wires2013

    • Author(s)
      J. Ishihara, Y. Ohno, and H. Ohno
    • Organizer
      7th International School and Conference on Spintronics and Quantum Information Technology (SPINTECH7)
    • Place of Presentation
      Chicago, USA, (C-07)
    • Related Report
      2013 Final Research Report
  • [Presentation] 変調ドープ(001)GaAs/AlGaAs細線における電子スピンダイナミクスの細線幅依存性2013

    • Author(s)
      石原淳,大野裕三,大野英男
    • Organizer
      第60回応用物理学会春季学術講演会
    • Place of Presentation
      神奈川工科大学, (28p-A8-1)
    • Related Report
      2013 Final Research Report
  • [Presentation] Mapping of photoexcited local spins in a modulation-doped GaAs/AlGaAs wires2013

    • Author(s)
      J. Ishihara, Y. Ohno, and H. Ohno
    • Organizer
      2013 International Conference on the Solid State Devices and Materials (SSDM2013)
    • Place of Presentation
      Fukuoka, Japan
    • Related Report
      2013 Annual Research Report
  • [Presentation] Wire width dependence of suppressed spin dephasing in modulation-doped GaAs/AlGaAs wires2013

    • Author(s)
      J. Ishihara, Y. Ohno, and H. Ohno
    • Organizer
      7th International School and Conference on Spintronics and Quantum Information Technology (SPINTECH7)
    • Place of Presentation
      Chicago, USA
    • Related Report
      2013 Annual Research Report
  • [Presentation] 変調ドープ(001)GaAs/AlGaAs細線における電子スピンダイナミクスの細線幅依存性2013

    • Author(s)
      石原 淳, 大野 裕三, 大野 英男
    • Organizer
      第60回応用物理学会春季学術講演会
    • Place of Presentation
      神奈川工科大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Anisotropic spin dephasing dynamics of quasi-one dimensional electron gas in modulation-doped GaAs/AlGaAs wires2013

    • Author(s)
      J. Ishihara, Y. Ohno, and H. Ohno
    • Organizer
      10th RIEC International Workshop on SPINTRONICS
    • Place of Presentation
      Tohoku University, Sendai
    • Related Report
      2012 Research-status Report
  • [Presentation] 細線加工した(001)GaAs/AlGaAs量子井戸における動的核スピン分極2012

    • Author(s)
      石原 淳, 大野 裕三, 大野 英男
    • Organizer
      秋季第73回応用物理学会学術講演会
    • Place of Presentation
      愛媛大学・松山大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Control of nuclear spin coherence in n-GaAs/AlGaAs (110) quantum well by nuclear electric resonance2012

    • Author(s)
      C. Zhang, J. Ishihara, M. Ono, Y. Ohno, and H. Ohno
    • Organizer
      31st Electronic Materials Symposium
    • Place of Presentation
      Laforet Shuzenji, Shizuoka
    • Related Report
      2012 Research-status Report
  • [Presentation] Coherent Control of Nuclear Spins in a (110) GaAs/GaAlAs Quantum Well by Nuclear Electric Resonance2012

    • Author(s)
      C. Zhang, J. Ishihara, M. Ono, Y. Ohno, and H. Ohno
    • Organizer
      9th RIEC International Workshop on SPINTRONICS
    • Place of Presentation
      Tohoku University, Sendai
    • Related Report
      2012 Research-status Report
  • [Remarks]

    • URL

      http://www.bk.tsukuba.ac.jp/~oono/

    • Related Report
      2013 Final Research Report

URL: 

Published: 2013-05-31   Modified: 2019-07-29  

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