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Study of electronic structure of GaMnAs with spin-BEEM

Research Project

Project/Area Number 24760006
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Applied materials science/Crystal engineering
Research InstitutionTokyo Institute of Technology

Principal Investigator

KAKU Shigeru  東京工業大学, 理工学研究科, 助教 (80583137)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsスピントロニクス / 希薄磁性半導体 / プローブ顕微鏡 / ナノ / スピンエレクトロニクス / 表面 / 磁性 / SPM / 結晶成長 / 高感度電気測定
Outline of Final Research Achievements

In order to clarify the mechanism of ferromagnetism of diluted magnetic semiconductor, we tried to measure the electronic structure of GaMnAs which is prototype ferromagnetic semiconductor by the microscopic method such as STM and BEEM. We developed high-resolution BEEM system. I could measure the subtle signal which shows the difference of 1ML quantum well width. Furthermore, the most suitable super-lattice structure and crystal growth method had been investigated.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (15 results)

All 2015 2014 2013 2012 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Acknowledgement Compliant: 1 results) Presentation (11 results)

  • [Journal Article] Magnetic Anisotropy Constants and Anisotropic Magneto-Resistances in GaMnAs Depending on Layer Thickness2014

    • Author(s)
      Daiki Nozaki, Shigeru Kaku, and Junji Yoshino
    • Journal Title

      Proceedings of the International Symposium on Science Explored by Ultra Slow Muon (USM2013)

      Volume: 2

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Origin of symmetric STM images for the asymmetric atomic configuration on GaAs(001)c(4 × 4)α surfaces2014

    • Author(s)
      Shigeru Kaku , Jun Nakamura, Kazuma Yagyua, Junji Yoshino
    • Journal Title

      Surface Science

      Volume: 625 Pages: 84-89

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] STM observation of MnAs initial growth surface on GaAs(001)-c(4×4)α and 6×6 reconstructions2013

    • Author(s)
      Masahiro Hiraoka, Shigeru Kaku, Junji Yoshino
    • Journal Title

      JournalofCrystalGrowth

      Volume: accept

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Symmetric-asymmetric transformation of an image on GaAs(001)-c(4 x 4)alpha surface using scanning tunneling microscopy2012

    • Author(s)
      Yagyu, Kazuma; Kaku, Shigeru; Yoshino, Junji
    • Journal Title

      JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A

      Volume: 30 Pages: 061403-061406

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] GaAs中Mn不純物状態のSTM観察2015

    • Author(s)
      津久井雅之
    • Organizer
      第62回 応用物理学春季学術講演会
    • Place of Presentation
      東海大学
    • Year and Date
      2015-03-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] BEEMによる量子井戸構造の解析と界面の評価2014

    • Author(s)
      今宮健太,加来滋,津久井雅之,吉野淳二
    • Organizer
      第75回 応用物理学秋季学術講演会
    • Place of Presentation
      北海道大学
    • Year and Date
      2014-09-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] GaAs(001)表面上への平坦金属薄膜の形成2014

    • Author(s)
      加来滋,今宮健太,津久井雅之,吉野淳二
    • Organizer
      第75回 応用物理学秋季学術講演会
    • Place of Presentation
      北海道大学
    • Year and Date
      2014-09-17
    • Related Report
      2014 Annual Research Report
  • [Presentation] Development of BEEM technique for study of quantum wells2014

    • Author(s)
      K. Imamiya, M. Hiraoka, M. Tsukui, S. Kaku and J. Yoshino
    • Organizer
      33rd Electronic Materials Symposium
    • Place of Presentation
      ラフォーレ修善寺
    • Year and Date
      2014-07-09
    • Related Report
      2014 Annual Research Report
  • [Presentation] SP-STM用探針の作製と評価手法の開発

    • Author(s)
      加来 滋,西尾真人,津久井雅之,平岡聖啓,吉野淳二
    • Organizer
      応用物理学会秋季大会
    • Place of Presentation
      同社大学
    • Related Report
      2013 Research-status Report
  • [Presentation] STM observation of novel nano-string structures on Cr-deposited Au(111)

    • Author(s)
      s. kaku and j. yoshino
    • Organizer
      EMS-31
    • Place of Presentation
      ラフォーレ 修善寺
    • Related Report
      2012 Research-status Report
  • [Presentation] Comparative study of initial growth of MnAs on GaAs(001)c(4*4)a and (6*6) reconstructions

    • Author(s)
      M. Hiraoka, S. Kaku and J. Yoshino
    • Organizer
      EMS-31
    • Place of Presentation
      ラフォーレ 修善寺
    • Related Report
      2012 Research-status Report
  • [Presentation] STM observation of initial growth surface of MnAs on GaAs (001)

    • Author(s)
      M. Hiraoka, S. Kaku and J. Yoshino
    • Organizer
      MBE2012
    • Place of Presentation
      奈良県立会館
    • Related Report
      2012 Research-status Report
  • [Presentation] Novel self-assembled nanostructures observed on Cr-deposited Au(111)

    • Author(s)
      s. kaku and j. yoshino
    • Organizer
      MBE2012
    • Place of Presentation
      奈良県立会館
    • Related Report
      2012 Research-status Report
  • [Presentation] Au(111)基板上に形成されたCrナノ構造のSTM観察

    • Author(s)
      加来滋 吉野淳二
    • Organizer
      PASPS17
    • Place of Presentation
      九州大学
    • Related Report
      2012 Research-status Report
  • [Presentation] STM測定と第一原理計算によるGaAs-c(4×4)α,βの電子構造解析

    • Author(s)
      加来滋,中村淳,柳生数馬,吉野淳二
    • 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

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

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