• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Search for novel electron spin filter using spin-polarized surface states

Research Project

Project/Area Number 26887024
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Condensed matter physics I
Research InstitutionOsaka University

Principal Investigator

OHTSUBO Yoshiyuki  大阪大学, 生命機能研究科, 助教 (70735589)

Project Period (FY) 2014-08-29 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsスピントロニクス / 表面電子状態 / 電子線スピンフィルタ / スピンフィルタ / スピン軌道相互作用 / スピン・角度分解光電子分光
Outline of Final Research Achievements

We are interested in the spin-filtering functionality of electron beam, which is a typical example of spintronics application using both of two character of electrons (charge and spin). For this study, we have (i) established the experimental method how to observe the spin-filtering functionality of electron beam and (ii) searched for the novel candidate of such electron-beam spin filter with hich efficiency and long lifetime. We used a conventional electron gun and Mott-type spin detector and demonstrated that the combination of these components can directly detect the spin-selective electron scattering. We also found some new surface atomic structures on the InSb(001) surface covered with Bi, showing one-dimensional (1D) surface atomic structure. One of the 1D Bi/InSb(001) surface holds the surface state with large spin polarization and its possible application to future spintronics is expected.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Annual Research Report
  • Research Products

    (18 results)

All 2016 2015 2014 Other

All Int'l Joint Research (1 results) Journal Article (7 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 7 results,  Acknowledgement Compliant: 2 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Remarks (1 results)

  • [Int'l Joint Research] Synchrotron SOLEIL/Univ. Paris-Sud/Universite Francois Rabelais de Tours(フランス)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Spin to Charge Conversion at Room Temperature by Spin Pumping into a New Type of Topological Insulator: α-Sn Films2016

    • Author(s)
      J-C Rojas-Sanchez, S Oyarzun, Y Fu, A Marty, C Vergnaud, S Gambarelli, L Vila, M Jamet, Y Ohtsubo, A Taleb-Ibrahimi, P Le Fevre, F Bertran, N Reyren, J-M George, A Fert
    • Journal Title

      Physical Review Letters

      Volume: 116 Issue: 9

    • DOI

      10.1103/physrevlett.116.096602

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Large modification in insulator-metal transition of VO2 films grown on Al2O3 (001) by high energy ion irradiation in biased reactive sputtering2016

    • Author(s)
      Nurul Hanis Azhan, Kunio Okimura, Yoshiyuki Ohtsubo, Shin-ichi Kimura, Mustapha Zaghrioui, and Joe Sakai
    • Journal Title

      Journal of Applied Physics

      Volume: 119 Issue: 5

    • DOI

      10.1063/1.4941348

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Surface Tomonaga-Luttinger-liquid state on Bi/InSb(001)2015

    • Author(s)
      Y. Ohtsubo, J. Kishi, K. Hagiwara, P. L. Fevre, F. Bertran, A. T. Ibrahimi, H. Yamane, S. Ideta, M. Matsunami, K. Tanaka, and S. Kimura
    • Journal Title

      Physical Review Letters

      Volume: 115 Issue: 25

    • DOI

      10.1103/physrevlett.115.256404

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Hierarchical spin-orbital polarization of a giant Rashba system2015

    • Author(s)
      Lewis Bawden, Jonathan M Riley, Choong H Kim, Raman Sankar, Eric J Monkman, Daniel E Shai, Haofei I Wei, Edward B Lochocki, Justin W Wells, Worawat Meevasana, Timur K Kim, Moritz Hoesch, Yoshiyuki Ohtsubo, Patrick Le Fevre, Craig J Fennie, Kyle M Shen, Fangcheng Chou, Phil DC King
    • Journal Title

      Science Advances

      Volume: 1 Issue: 8

    • DOI

      10.1126/sciadv.1500495

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Topological phase diagram and saddle point singularity in a tunable topological crystalline insulator2015

    • Author(s)
      Madhab Neupane, Su-Yang Xu, R Sankar, Q Gibson, YJ Wang, I Belopolski, N Alidoust, G Bian, PP Shibayev, DS Sanchez, Y Ohtsubo, A Taleb-Ibrahimi, S Basak, W-F Tsai, H Lin, Tomasz Durakiewicz, RJ Cava, A Bansil, FC Chou, M Zahid Hasan
    • Journal Title

      Physical Review B

      Volume: 92 Issue: 7

    • DOI

      10.1103/physrevb.92.075131

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Experimental evidence for two-dimensional states localized in subsurface region of Ge(111)2015

    • Author(s)
      K. Yaji, Y. Ohtsubo, S. Hatta, H. Okuyama, R. Yukawa, I. Matsuda, P. Le Fevre, F. Bertran, A. Taleb-Ibrahimi, A. Kakizaki, T. Aruga
    • Journal Title

      J. Electron Spectros. Relat. Phenom

      Volume: 201 Pages: 92-97

    • DOI

      10.1016/j.elspec.2014.09.005

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] New aspects of electronic excitations at the bismuth surface: Topology, thermalizatoin and coupling to coherent phonons2014

    • Author(s)
      L. Perfetti, J. Faure, E. Papalazarou, J. Mauchain, M. Marsi, M.O. Goerbig, A. Taleb-Ibrahimi, Y. Ohtsubo
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena

      Volume: - Pages: 60-65

    • DOI

      10.1016/j.elspec.2014.12.004

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Presentation] InSb(001)基板上に作製したBi薄膜の1次元的な表面電子状態2016

    • Author(s)
      岸潤一郎, 大坪嘉之, 萩原健太, 木村真一
    • Organizer
      日本物理学会 第71回年会
    • Place of Presentation
      東北学院大(宮城県 仙台市)
    • Year and Date
      2016-03-19
    • Related Report
      2015 Annual Research Report
  • [Presentation] 近藤絶縁体YbB12(001)表面の角度分解光電子分光2016

    • Author(s)
      萩原健太, 大坪嘉之,岸潤一郎,松波雅治, 田中清尚, 伊藤孝寛,宮崎秀俊,伊賀文俊,J. Rault,P. Le Fevre, F. Bertran, A. Taleb-Ibrahimi,木村真一
    • Organizer
      第29回日本放射光学会年会 放射光科学合同シンポジウム
    • Place of Presentation
      東大物性研柏の葉キャンパス(千葉県 柏市)
    • Year and Date
      2016-01-09
    • Related Report
      2015 Annual Research Report
  • [Presentation] 近藤絶縁体YbB12(001)表面の角度分解光電子分光2015

    • Author(s)
      萩原健太, 岸潤一郎, 大坪嘉之, 松波雅治, 田中清尚, 伊藤孝寛, 宮崎秀俊, 伊賀文俊, 木村真一
    • Organizer
      日本物理学会 2015年秋季大会
    • Place of Presentation
      関西大学(大阪府 吹田市)
    • Year and Date
      2015-09-18
    • Related Report
      2015 Annual Research Report
  • [Presentation] Bi被覆InSb(001)上の1次元金属的電子状態と表面原子構造2015

    • Author(s)
      大坪嘉之, 岸潤一郎, 萩原健太, Patrick Le Fevre, Francois Bertran, Amina Taleb-Ibrahimi, 松波雅治, 田中清尚, 木村真一
    • Organizer
      日本物理学会 2015年秋季大会
    • Place of Presentation
      関西大学(大阪府 吹田市)
    • Year and Date
      2015-09-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] Surface states of elemental topological materials: alpha tin and bismuth2015

    • Author(s)
      Yoshiyuki Ohtsubo
    • Organizer
      SOCSIS (Spin-Orbit Coupling in Surface or Interface States) 2015
    • Place of Presentation
      Spetses (Greece)
    • Year and Date
      2015-06-08
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 表面一次元原子鎖Au/Ge(001)の二次元電子状態2015

    • Author(s)
      矢治光一郎,湯川龍,金聖憲,大坪嘉之,P. Le Fevre,F. Bertran,A. Taleb-Ibrahimi,松田巌,中辻寛,小森文夫
    • Organizer
      日本物理学会第70回年次大会
    • Place of Presentation
      早稲田大学(東京都)
    • Year and Date
      2015-03-24
    • Related Report
      2014 Annual Research Report
  • [Presentation] Bi/InSb(001)-c(2×6)表面における1次元金属的電子状態2015

    • Author(s)
      大坪嘉之,岸潤一郎,萩原健太,P. Le Fevre,F. Bertran,A. Taleb-Ibrahimi,松波雅治,田中清尚,木村真一
    • Organizer
      日本物理学会第70回年次大会
    • Place of Presentation
      早稲田大学(東京都)
    • Year and Date
      2015-03-21
    • Related Report
      2014 Annual Research Report
  • [Presentation] Bi単結晶のトポロジカル表面状態2015

    • Author(s)
      大坪 嘉之, L. Perfetti, M.O. Goerbig, P. Le Fevre, F. Bertran, A. Taleb-Ibrahimi
    • Organizer
      日本放射光学会年会 放射光科学合同シンポジウム
    • Place of Presentation
      立命館大学(滋賀県)
    • Year and Date
      2015-01-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] 単元素トポロジカル物質の表面電子状態2014

    • Author(s)
      大坪 嘉之
    • Organizer
      日本物理学会2014年秋季大会
    • Place of Presentation
      中部大学(愛知県)
    • Year and Date
      2014-09-08
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Remarks] 1次元での電子の振る舞いを固体表面で実証

    • URL

      http://resou.osaka-u.ac.jp/ja/research/2015/20151202_2

    • Related Report
      2015 Annual Research Report

URL: 

Published: 2014-09-09   Modified: 2020-05-15  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi