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

Surface electronic structure studied by linear and circular dichroism of the two-dimensional angle-resolved photoemission mapping

Research Project

Project/Area Number 16K13726
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Quantum beam science
Research InstitutionSaga University

Principal Investigator

Takahashi Kazutoshi  佐賀大学, シンクロトロン光応用研究センター, 准教授 (30332183)

Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords角度分解光電子分光 / 放射光 / レーザー / 光電子分光 / 表面・界面
Outline of Final Research Achievements

Two-dimensional (2D) mapping on angle-resolved photoemission spectroscopy (ARPES) provides a rich variety of information concerning the electronic and atomic structure of solids and surfaces. In this work, photoemission spectrometer of 2D-mapping type has been employed to obtain the ARPES mapping with keeping the geometry between the sample and light. Circular polarization at the photon energy between 8 and 9 eV has been achieved using a MgF2 l/4 wave plate. Using this system, two-dimensional CD-ARPES mapping of Rashba-split surface state on Bi(111) film on Si(111) substrate has been demonstrated. Strong CD in ARPES mapping of S1, S2 and S3 surface states on Bi(111) shows not only a symmetry corresponding to surface lattice but also the electronic coupling with bulk states. The observed CD contrast of the surface states on Bi(111) seem entangled with spin and local angular momentum, as well as experimental geometry and the two-dimensional character of surface state.

Report

(3 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2018 2016 Other

All Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Remarks (2 results)

  • [Presentation] Circular dichroism in angle-resolved photoemission spectra of surface state on Bi(111)2018

    • Author(s)
      K. Takahashi, M. Imamura, I. Yamamoto, and J. Azuma
    • Organizer
      International Conference on Synchrotron Radiation Instrumentation (SRI 2018)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Electronic states of Bi(110) ultrathin films studied by photoemission spectroscopy with laser and synchrotron radiation2018

    • Author(s)
      K. Takahashi, M. Imamura, I. Yamamoto, and J. Azuma
    • Organizer
      Conference on Laser and Synchrotron Radiation Combination Experiment 2018 (LSC2018)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 1光子および2光子光電子分光によるグラフェン上Bi(110)超薄膜の電子状態の研究2016

    • Author(s)
      高橋和敏,今村真幸,豊福一仁,山下陽平,山本勇,東純平
    • Organizer
      2016年真空・表面科学合同講演会
    • Place of Presentation
      名古屋市
    • Year and Date
      2016-11-29
    • Related Report
      2016 Research-status Report
  • [Presentation] グラフェン上Bi(110)超薄膜の角度分解光電子分光2016

    • Author(s)
      高橋和敏, 今村真幸,山本勇,東純平
    • Organizer
      日本物理学会2016年秋期大会
    • Place of Presentation
      金沢市
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
  • [Presentation] Angle-resolved photoemission study of ultrathin Bi(110) films grown on epitaxial graphene2016

    • Author(s)
      Kazutoshi Takahashi, Masaki Imamura, Isamu Yamamoto, and Junpei Azuma
    • Organizer
      The 39th International Conference of Vacuum Ultraviolet and X-ray Physics (VUVX2016)
    • Place of Presentation
      Zurich
    • Year and Date
      2016-07-03
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Remarks] 佐賀大学シンクロトロン光応用研究センター 研究業績

    • URL

      http://www.slc.saga-u.ac.jp/research/papers2018

    • Related Report
      2017 Annual Research Report
  • [Remarks] 佐賀大学研究業績システム

    • URL

      http://research.dl.saga-u.ac.jp/profile/ja.33a77c82d9902c63.html

    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2019-03-29  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi