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Theoretical studies on chiral transport in crystals

Research Project

Project/Area Number 16K13834
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Condensed matter physics II
Research InstitutionTokyo Institute of Technology

Principal Investigator

Murakami Shuichi  東京工業大学, 理学院, 教授 (30282685)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords物性理論 / スピンエレクトロニクス / スピントロニクス
Outline of Final Research Achievements

In our previous work we predicted that in chiral crystals, a current induces an orbital magnetization in either parallel or antiparallel directions, and we call this phenomenon chiral transport. In this project, we introduced a parameter representing how chiral the transport in the crystal is, and we showed that it can be enhanced by one or two orders of magnitude compared with classical solenoids. In addition, we constructed a theory of this current-induced orbital magnetization in a broader class of metals, such as polar metals, two-dimensional thin films without inversion symmetry, and surfaces/interfaces of insulators, and we physically interpret this phenomenon in terms of formation of current loops. As a byproduct, we constructed a method to calculate in-plane orbital magnetization in two-dimensional systems.

Academic Significance and Societal Importance of the Research Achievements

電流誘起軌道磁化(カイラル伝導)は、従来のスピン軌道相互作用を利用した磁化制御と異なり、結晶構造自身により決まる現象であり、多種多様な結晶構造を利用することで、従来のスピントロニクスとは異なる形で磁化を制御できる可能性を拓く。本研究によりこの効果が現れる物質系を、らせん構造の結晶のみならず、表面・界面、2次元原子層膜などさまざまな方向へ広げることができ、理論・実験面で今後の広がりが期待できる。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (34 results)

All 2020 2019 2018 2017 2016

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Acknowledgement Compliant: 1 results) Presentation (28 results) (of which Int'l Joint Research: 25 results,  Invited: 25 results)

  • [Journal Article] Phonon rotoelectric effect2020

    • Author(s)
      Hamada Masato、Murakami Shuichi
    • Journal Title

      Physical Review B

      Volume: 101 Issue: 14 Pages: 144306-144306

    • DOI

      10.1103/physrevb.101.144306

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Orbital Edelstein Effect as a Condensed-Matter Analog of Solenoids2018

    • Author(s)
      Taiki Yoda, Takehito Yokoyama, and Shuichi Murakami
    • Journal Title

      Nano Lett.

      Volume: 18 Issue: 2 Pages: 916-920

    • DOI

      10.1021/acs.nanolett.7b04300

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Emergence of topological semimetals in gap closing in semiconductors without inversion symmetry2017

    • Author(s)
      Shuichi Murakami, Motoaki Hirayama, Ryo Okugawa, Takashi Miyake
    • Journal Title

      Sci. Adv.

      Volume: 3 Issue: 5

    • DOI

      10.1126/sciadv.1602680

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] らせん結晶における電流が誘起する軌道磁化2017

    • Author(s)
      養田大騎,横山毅人,村上修一
    • Journal Title

      日本物理学会誌

      Volume: 72巻 Pages: 872-872

    • NAID

      130007472182

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spinless hourglass nodal-line semimetals2017

    • Author(s)
      Ryo Takahashi, Motoaki Hirayama, and Shuichi Murakami
    • Journal Title

      Phys. Rev. B

      Volume: 96 Issue: 15 Pages: 155206-155206

    • DOI

      10.1103/physrevb.96.155206

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Topological phases in a Weyl semimetal multilayer2016

    • Author(s)
      K. Yokomizo, S. Murakami
    • Journal Title

      Phys. Rev. B

      Volume: 95 Issue: 15 Pages: 155101-155101

    • DOI

      10.1103/physrevb.95.155101

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Theory of Chiral Transport in Chiral Crystals2019

    • Author(s)
      Shuichi Murakami
    • Organizer
      The 80th Okazaki Conference,Chirality-induced spin selectivity and its related phenomena
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Theory of chiral transport in chiral crystals2019

    • Author(s)
      Shuichi Murakami
    • Organizer
      META 2019 (10th International Conference on Metamaterials, Photonic Crystals and Plasmonics
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Orbital Edelstein effect and Phonon Edelstein Effect2018

    • Author(s)
      Shuichi Murakami
    • Organizer
      MRS Fall Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Theoretical Proposals for New Edelstein effects2018

    • Author(s)
      Shuichi Murakami
    • Organizer
      International Symposium on Magnetism and Magnetic Materials 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] New variants of the Edelstein effect2018

    • Author(s)
      Shuichi Murakami
    • Organizer
      SPIE Optics + Photonics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Topology and transport in inversion-asymmetric crystals2018

    • Author(s)
      Shuichi Murakami
    • Organizer
      OIST
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Various Edelstein effects in inversion asymmetric crystals2018

    • Author(s)
      Shuichi Murakami
    • Organizer
      IcAUMS 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Topology and transport in inversion asymmetric crystals2018

    • Author(s)
      Shuichi Murakami
    • Organizer
      FROM SOLID STATE TO BIOPHYSICS IX
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological bands and topological phase transitions in electronic and magnonic systems2018

    • Author(s)
      Shuichi Murakami
    • Organizer
      Intermag 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Edelstein effects in inversion asymmetric crystals2018

    • Author(s)
      Shuichi Murakami
    • Organizer
      6th International Conference on Superconductivity and Magnetism
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Topology and transport in inversion-asymmetric crystals2018

    • Author(s)
      Shuichi Murakami
    • Organizer
      The 2nd Fudan Workshop on Complex Quantum Material
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Edelstein effects in inversion asymmetric crystals2018

    • Author(s)
      Shuichi Murakami
    • Organizer
      New Excitations in Spintronics 2018
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Orbital Edelstein effect as a condensed-matter analog of solenoid2018

    • Author(s)
      Shuichi Murakami
    • Organizer
      APS March Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Overview of topological metals2017

    • Author(s)
      Shuichi Murakami
    • Organizer
      48th Springschool, Forschungszentrum Juelich
    • Place of Presentation
      Juelich Germany
    • Year and Date
      2017-03-29
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Emergence of topological semimetals in gap closing in semiconductors without inversion symmetry2017

    • Author(s)
      Shuichi Murakami
    • Organizer
      APS March Meeting 2017
    • Place of Presentation
      New Orleans, USA
    • Year and Date
      2017-03-16
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Symmetry, topology, and emergent phenomena in topological semimetals2017

    • Author(s)
      Shuichi Murakami
    • Organizer
      Psi-k/CECAM Research Conference on “Ab-initio Spin-orbitronics”,
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Topology and transport in inversion-asymmetric crystals2017

    • Author(s)
      Shuichi Murakami
    • Organizer
      CEMS Symposium on Trends in Condensed Matter Physics
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 空間反転対称性の破れた系でのトポロジカル相とスピントロニクス2017

    • Author(s)
      Shuichi Murakami
    • Organizer
      北海道大学学術講演会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] New variants of the Edelstein effect2017

    • Author(s)
      Shuichi Murakami
    • Organizer
      Japan-Korea Spintronics Program
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Topology and symmetry in topological semimetals (plenary)2017

    • Author(s)
      Shuichi Murakami
    • Organizer
      1st Workshop on Topological Quantum Phenomena and Quantum Information Science
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological phases in condensed materials (tutorial)2017

    • Author(s)
      Shuichi Murakami
    • Organizer
      1st Workshop on Topological Quantum Phenomena and Quantum Information Science
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] トポロジカル物質相でのトポロジーと対称性の協奏2017

    • Author(s)
      Shuichi Murakami
    • Organizer
      物性物理分野における協働展開
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Topological phase transitions in three dimensions2016

    • Author(s)
      Shuichi Murakami
    • Organizer
      Chiral Matter 2016
    • Place of Presentation
      Wako, Saitama, Japan
    • Year and Date
      2016-12-07
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ワイル半金属とトポロジカル相転移2016

    • Author(s)
      村上 修一
    • Organizer
      第二回 ディラック電子系マルチフェロイクス研究会
    • Place of Presentation
      名古屋大学物質科学国際研究センター(愛知県名古屋市)
    • Year and Date
      2016-11-18
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Current-induced magnetizations in chiral systems2016

    • Author(s)
      Shuichi Murakami
    • Organizer
      International workshop on Nano-Spin Conversion Science and Quantum Spin Dynamics (NSCS-QSD 2016)
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2016-10-13
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Interplay between topology and symmetry in topological insulators/semimetals2016

    • Author(s)
      Shuichi Murakami
    • Organizer
      EU-JAPAN Workshop on Computational Materials Design and Realization for Spintronics, Moltronics, Quantronics, Superconductivity and Topotronics
    • Place of Presentation
      Juelich, Germany
    • Year and Date
      2016-09-21
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Topological phases in condensed matter2016

    • Author(s)
      Shuichi Murakami
    • Organizer
      17th iTHES Colloquium
    • Place of Presentation
      Wako, Saitama, Japan
    • Year and Date
      2016-07-14
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] In-plane electric polarization of bilayer graphene nanoribbons by interlayer voltage2016

    • Author(s)
      Shuichi Murakami
    • Organizer
      "5th International Conference on Superconductivity and Ferromagnetism (ICSM 2016) "
    • Place of Presentation
      Fethiye, Turkey
    • Year and Date
      2016-04-27
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2016-04-21   Modified: 2021-02-19  

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