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Spin-charge conversion with noncentrosymmetric materials

Research Project

Project/Area Number 15H05458
Research Category

Grant-in-Aid for Young Scientists (A)

Allocation TypeSingle-year Grants
Research Field Condensed matter physics II
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Seki Shinichiro  国立研究開発法人理化学研究所, 創発物性科学研究センター, ユニットリーダー (70598599)

Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥21,710,000 (Direct Cost: ¥16,700,000、Indirect Cost: ¥5,010,000)
Fiscal Year 2016: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2015: ¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Keywordsスピントロニクス / 物性実験 / 磁気共鳴
Outline of Final Research Achievements

In this work, we attempted to observe spin-charge conversion caused by inverse Edelstein effect associated with the spin-splitting in noncentrosymmetric bulk semiconductors. While we first tried spin-pumping experiments for ferromagnet/semiconductor interfaces, it turned out that the contribution from interface is more significant than the underlying bulk itself and we couldn't observe the selection rule as expected. To overcome this issue, we have performed the magneto-photocurrent measurements, and observed the photo-induced voltage signals along the direction consistent with the symmetry of noncentrosymmetric bulk crystal structures.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • Research Products

    (19 results)

All 2017 2016 2015 Other

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 7 results,  Open Access: 2 results,  Acknowledgement Compliant: 5 results) Presentation (9 results) (of which Int'l Joint Research: 7 results,  Invited: 8 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Noncentrosymmetric Magnets Hosting Magnetic Skyrmions2017

    • Author(s)
      Naoya Kanazawa, Shinichiro Seki, Yoshinori Tokura
    • Journal Title

      Advanced Materials

      Volume: Online Issue: 25 Pages: 1603227-1603227

    • DOI

      10.1002/adma.201603227

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Transition to and from the skyrmion lattice phase by electric fields in a magnetoelectric compound2016

    • Author(s)
      Y. Okamura, F. Kagawa, S. Seki, and Y. Tokura
    • Journal Title

      Nature Communications

      Volume: 7 Issue: 1 Pages: 12669-12669

    • DOI

      10.1038/ncomms12669

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Magnetic Reversal of Electric Polarization with Fixed Chirality of Magnetic Structure in a Chiral-Lattice Helimagnet MnSb2O62016

    • Author(s)
      M. Kinoshita, S. Seki, T. J. Sato, Y. Nambu, T. Hong, M. Matsuda, H. B. Cao, S.Ishiwata, and Y. Tokura
    • Journal Title

      Phys. Rev. Lett.

      Volume: 117 Issue: 4 Pages: 047201-047201

    • DOI

      10.1103/physrevlett.117.047201

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Magnetochiral nonreciprocity of volume spin wave propagation in chiral-lattice ferromagnets2016

    • Author(s)
      S. Seki, Y. Okamura, K. Kondou, K. Shibata, M. Kubota, R. Takagi, F. Kagawa, M. Kawasaki, G. Tatara, Y. Otani, and Y. Tokura
    • Journal Title

      Phys. Rev. B

      Volume: 93 Issue: 23 Pages: 235131-235131

    • DOI

      10.1103/physrevb.93.235131

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microwave magnetochiral dichroism in chiral-lattice magnet Cu2OSeO32015

    • Author(s)
      Y. Okamura, F. Kagawa, S. Seki, M. Kubota, M. Kawasaki, Y. Tokura
    • Journal Title

      Physical Review Letters

      Volume: 114 Issue: 19 Pages: 197202-197202

    • DOI

      10.1103/physrevlett.114.197202

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Thermal generation of spin current in an antiferromagnet2015

    • Author(s)
      S. Seki, T. Ideue, M. Kubota, Y. Kozuka, R. Takagi, M. Nakamura, Y.Kaneko, M. Kawasaki, Y. Tokura
    • Journal Title

      Physical Review Letters

      Volume: 115 Issue: 26 Pages: 266601-266601

    • DOI

      10.1103/physrevlett.115.266601

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamical magnetoelectric phenomena of multiferroic skyrmions2015

    • Author(s)
      M. Mochizuki, S. Seki
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 27 Issue: 50 Pages: 503001-503024

    • DOI

      10.1088/0953-8984/27/50/503001

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 絶縁体中のキラリティと強磁性2016

    • Author(s)
      関 真一郎
    • Organizer
      豊田理研ワークショップ「キラル対称系の電磁応答」
    • Place of Presentation
      トヨタ産業技術記念館(愛知県名古屋市西区)
    • Year and Date
      2016-11-19
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Thermal generation of spin current in antiferromagnets and helimagnets2016

    • Author(s)
      S. Seki
    • Organizer
      Annual Conference on Magnetism and Magnetic Materials (MMM)
    • Place of Presentation
      米国(ニューオーリーンズ)
    • Year and Date
      2016-11-01
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Emergent phenomena in chiral-lattice ferromagnetic insulators2016

    • Author(s)
      S. Seki
    • Organizer
      Asia Pacific Center for Theoretical Physics (APCTP) Workshop on Multiferroics
    • Place of Presentation
      中国(上海)
    • Year and Date
      2016-10-09
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 一軸引張応力による磁気スキルミオンの安定化2016

    • Author(s)
      関 真一郎
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      金沢大学(石川県金沢市)
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] Control of skyrmions by electric field and mechanical strain2016

    • Author(s)
      S. Seki
    • Organizer
      International Workshop on Topological Structures in Ferroic Materials
    • Place of Presentation
      ドイツ(ドレスデン)
    • Year and Date
      2016-08-19
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Chirality and Ferromagnetism2016

    • Author(s)
      S. Seki
    • Organizer
      Gordon Research Conference on Multiferroic and Magnetoelectric Materials
    • Place of Presentation
      米国(ルイストン)
    • Year and Date
      2016-08-10
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Spin current in antiferromagnets and multiferroics2016

    • Author(s)
      S. Seki
    • Organizer
      Spin Caloritronics 7
    • Place of Presentation
      オランダ(ユトレヒト)
    • Year and Date
      2016-07-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Spin dynamics in chiral multiferroic insulators with magnetic skyrmions2015

    • Author(s)
      S. Seki
    • Organizer
      International Workshop on Topological Structures in Ferroic Materials
    • Place of Presentation
      シドニー
    • Year and Date
      2015-05-19
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Magnetoelectric Skyrmions in Multiferroics2015

    • Author(s)
      S. Seki
    • Organizer
      Intermag
    • Place of Presentation
      北京
    • Year and Date
      2015-05-12
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] Skyrmions in Magnetic Materials2015

    • Author(s)
      S. Seki, M. Mochizuki
    • Total Pages
      69
    • Publisher
      Springer
    • Related Report
      2015 Annual Research Report
  • [Remarks] Emergent Spintronics Research Unit

    • URL

      http://www.cems.riken.jp/en/laboratory/esru

    • Related Report
      2016 Annual Research Report
  • [Remarks] 個人ページ

    • URL

      http://sekilab.net

    • Related Report
      2016 Annual Research Report

URL: 

Published: 2015-04-16   Modified: 2020-05-15  

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