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Spin states in multiply coupled artificial atoms

Research Project

Project/Area Number 23740248
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Condensed matter physics I
Research InstitutionThe Institute of Physical and Chemical Research

Principal Investigator

AMAHA Shinichi  独立行政法人理化学研究所, 創発物性科学研究センター, 研究員 (90587924)

Project Period (FY) 2011 – 2012
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords量子ドット / 半導体 / 量子ビット / スピン / スピン相関 / メゾスコピック系 / 電子相関 / 量子情報
Research Abstract

The target of this project is to explore spin-related and electron correlated physics in transport properties of multiply coupled quantum dots. We have investigated (1) Resonance-hybrid states formed in two- and three-electron laterally coupled triple vertical quantum dot, (2) Three-electron spin blockade in a double quantum dot and (3) Two and three-electron spin blockades in series coupled triple quantum dot device.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (16 results)

All 2014 2013 2012 2011

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (11 results)

  • [Journal Article] Spin blockade in a double quantum dot containing three electrons2014

    • Author(s)
      S. Amaha, W. Izumida, T. Hatano, S. Tarucha, K. Kono, K. Ono
    • Journal Title

      Physical Review B

      Volume: 89巻 Issue: 8 Pages: 85302-85302

    • DOI

      10.1103/physrevb.89.085302

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Excitation spectroscopy of few-electron states in artificial diatomic molecules2013

    • Author(s)
      T. Hatano, Y. Tokura, S. Amaha, T. Kubo, S. Teraoka, and S. Tarucha
    • Journal Title

      PHYSICAL REVIEW B

      Volume: 87 Issue: 24

    • DOI

      10.1103/physrevb.87.241414

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Two- and Three-Electron Pauli Spin Blockade in Series-Coupled Triple Quantum Dots2013

    • Author(s)
      S. Amaha, W. Izumida, T. Hatano, S. Teraoka, S. Tarucha, J. A. Gupta, and D. G. Austing
    • Journal Title

      Phys. Rev. Lett

      Volume: 110 Issue: 1 Pages: 16803-16803

    • DOI

      10.1103/physrevlett.110.016803

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Series-coupled triple quantum dot molecules2012

    • Author(s)
      S. Amaha, T. Hatano, W. Izumida, S. Teraoka, K. Ono, K. Kono, S. Tarucha, G. Aers, J. Gupta6, and G. Austing
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 51 Issue: 2S Pages: 02BJ06-02BJ06

    • DOI

      10.1143/jjap.51.02bj06

    • NAID

      210000140262

    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Resonance-hybrid states in a triple quantum dot2012

    • Author(s)
      S.Amaha, T.Hatano, H.Tamura, S.Teraoka, T.Kubo, Y.Tokura, D.G.Austing, S.Tarucha
    • Journal Title

      PHYSICAL REVIEW B

      Volume: 85 Issue: 8 Pages: 0813011-6

    • DOI

      10.1103/physrevb.85.081301

    • Related Report
      2013 Final Research Report 2011 Research-status Report
    • Peer Reviewed
  • [Presentation] 縦横結合4 重量子ドットの電気伝導特性2014

    • Author(s)
      天羽真一, M. Delbecq、中島峻、大塚朋廣、大野圭司、D. G. Austing、 羽田野剛司、樽茶清悟
    • Organizer
      日本物理学会 第68回年次大会
    • Place of Presentation
      関西大学
    • Year and Date
      2014-03-29
    • Related Report
      2013 Final Research Report
  • [Presentation] 縦横結合4重量子ドットの電気伝導特性2014

    • Author(s)
      天羽真一、M. Delbecq、中島峻、大塚朋廣、大野圭司、D. G. Austing、 羽田野剛司、樽茶清悟
    • Organizer
      日本物理学会 第69回年次大会
    • Place of Presentation
      東海大学 湘南キャンパス
    • Related Report
      2013 Annual Research Report
  • [Presentation] スピンブロッケイドの電流閉塞状態の遷移と電流の2値的振る舞い2013

    • Author(s)
      天羽真一,都倉康弘,黒澤元,久保敏弘,近藤裕佑,樽茶清悟,河野公俊,大野圭司
    • Organizer
      日本物理学会 第68回年次大会
    • Place of Presentation
      広島大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 直列2重量子ドットにおける波動関数mapping とLO phonon 効果2012

    • Author(s)
      天羽真一,羽田野剛司,寺岡総一郎,大野圭司,河野公俊,樽茶清悟
    • Organizer
      日本物理学会
    • Place of Presentation
      関西学院大学
    • Year and Date
      2012-03-24
    • Related Report
      2013 Final Research Report
  • [Presentation] 共鳴トンネル電流に対するスピン一重項電流閉塞の効果2012

    • Author(s)
      天羽真一,樽茶清悟,河野公俊,大野圭司
    • Organizer
      日本物理学会 2012年秋季大会
    • Place of Presentation
      横浜国立大学
    • Related Report
      2012 Research-status Report
  • [Presentation] 直列2重量子ドットにおける波動関数mappingとLO phonon効果2012

    • Author(s)
      天羽真一,羽田野剛司,寺岡総一郎,大野圭司,河野公俊,樽茶清悟
    • Organizer
      日本物理学会
    • Place of Presentation
      関西学院大学
    • Related Report
      2011 Research-status Report
  • [Presentation] Coulomb diamonds and Two-electron Coulomb diamonds and Two-electron Spin Blockades in Cotunneling Regime of Serial Vertical Triple Quantum Dot Device2011

    • Author(s)
      S. Amaha, W. Izumida, T. Hatano,S. Teraoka, K. Ono, K. Kono, S. Taucha, J. Gupta and D. G. Austing
    • Organizer
      2011 International Conference on Solid State Devices and Materials
    • Place of Presentation
      愛知県産業労働センター ウインクあいち
    • Year and Date
      2011-09-30
    • Related Report
      2013 Final Research Report
  • [Presentation] 直列多重ドットで誘起される電子スピン状態とスピンブロッケード2011

    • Author(s)
      泉田渉,天羽真一
    • Organizer
      日本物理学会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-23
    • Related Report
      2013 Final Research Report 2011 Research-status Report
  • [Presentation] 2重量子ドットにおける3 電子スピンブロッケイド現象と核スピン効果2011

    • Author(s)
      天羽真一,泉田渉,高橋諒,河野公俊,樽茶清悟,D. G. Austing,大野圭司
    • Organizer
      日本物理学会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-23
    • Related Report
      2013 Final Research Report
  • [Presentation] 2重量子ドットにおける3電子スピンブロッケイド現象と核スピン効果2011

    • Author(s)
      天羽真一,泉田渉,高橋諒,河野公俊,樽茶清悟,D. G. Austing,大野圭司
    • Organizer
      日本物理学会
    • Place of Presentation
      富山大学
    • Related Report
      2011 Research-status Report
  • [Presentation] Coulomb diamonds and Two-electron Coulomb diamonds and Two-electron2011

    • Author(s)
      S. Amaha, W. Izumida, T. Hatano,S. Teraoka, K. Ono, K. Kono, S. Taucha, J. Gupta and D. G. Austing
    • Organizer
      2011 International Conference on Solid State Devices and Materials
    • Place of Presentation
      愛知県産業労働センター ウインクあいち
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2020-05-15  

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