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Photoinduced phenomena originated from electron geometrical phases

Research Project

Project/Area Number 22540340
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics I
Research InstitutionNational Institute for Materials Science

Principal Investigator

INOUE Junichi  独立行政法人物質・材料研究機構, 理論計算科学ユニット, 主任研究員 (90323427)

Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords光物性 / トポロジカル絶縁体 / 判定法 / 光学的性質 / 光誘起現象 / 量子相転移 / Berry phas / 光学的断熱操作
Research Abstract

For two-dimensional topological insulators and a surface state states on three-dimensional topological insulators, we demonstrated that an electron and spin Hall current can be controlled by an application of continuous laser beam. Underline physics of these phenomena is that the application of the laser field turns a electron hopping energy into a variable, and thus topological invariants that are uniquely fixed by given material parameters in turn become externally controllable variables. Consequently, we can expect quantized electron and spin Hall current can be photo-induced under an appropriate condition.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (12 results)

All 2013 2012 2011 2010

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (2 results)

  • [Journal Article] An optical test for identifying topological insulator thin films2013

    • Author(s)
      Jun-ichi Inoue
    • Journal Title

      Optics Express 21

      Pages: 8564-8569

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] An optical test for identifying topological insulator thin films2013

    • Author(s)
      Jun-ichi Inoue
    • Journal Title

      Optics Express

      Volume: 21

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photoinduced spin Chern number change in a two-dimensional quantum spin Hall insulator with broken spin rotational symmetry2012

    • Author(s)
      Jun-ichi Inoue and Akihiro Tanaka
    • Journal Title

      Physical Review

      Volume: B85

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Photoinduced spin Chern number change in a two-dimensional quantum spin Hall insulator with broken spin rotational symmetry2012

    • Author(s)
      Jun-ichi Inoue, Akihiro Tanaka
    • Journal Title

      Physical Review B

      Volume: 85 Issue: 12

    • DOI

      10.1103/physrevb.85.125425

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Valley-contrastive selection rules of a nonlinear optical transition in graphene with an energy gap2011

    • Author(s)
      Jun-ichi Inoue
    • Journal Title

      Physical Review

      Volume: B83

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Optical tuning of Berry phase effect in topological insulators2011

    • Author(s)
      Jun-ichi Inoue
    • Journal Title

      Journal of Luminescence

      Volume: 131 Pages: 482-485

    • Related Report
      2012 Final Research Report 2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Valley-contrastive election rules of a nonlinear optical transition in graphene with an energy gap2011

    • Author(s)
      Jun-ichi Inoue
    • Journal Title

      Physical Review B

      Volume: 83 Issue: 20

    • DOI

      10.1103/physrevb.83.205404

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optical tuning of Berry phase effect in topological insulators2011

    • Author(s)
      Jun-ichi Inoue
    • Journal Title

      Journal of Juminescence

      Volume: 131 Issue: 3 Pages: 482-485

    • DOI

      10.1016/j.jlumin.2010.11.007

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photoinduced transition between conventional insulators in two-dimensional electronic systems2010

    • Author(s)
      Jun-ichi Inoue and Akihiro Tanaka
    • Journal Title

      Physical Review Letters

      Volume: 105

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Photoinduced Transition between Conventional and Topological Insulators in Two-Dimensional Electronic Systems2010

    • Author(s)
      Jun-ichi Inoue, Akihiro Tanaka
    • Journal Title

      Physical Review Letters

      Volume: 105

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Optical tuning of Berry phase effect in topological insulators2011

    • Author(s)
      Jun-ichi Inoue
    • Organizer
      17th international conference on dynamical processes in excited states in solids
    • Place of Presentation
      シカゴ(アメリカ)
    • Year and Date
      2011-07-25
    • Related Report
      2012 Final Research Report
  • [Presentation] Optical tuning of Berry phase effect in topological insulators2010

    • Author(s)
      Jun-ichi Inoue
    • Organizer
      17th International Conference on Dynamical Processes in Excited States in solids
    • Place of Presentation
      Argonne National Laboratory(米国)
    • Year and Date
      2010-06-25
    • Related Report
      2010 Annual Research Report

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Published: 2010-08-23   Modified: 2020-05-15  

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