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Theoretical study for formation and control of antiferromagnetic domain

Research Project

Project/Area Number 20K21067
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 26:Materials engineering and related fields
Research InstitutionTohoku University

Principal Investigator

Suzuki Michi-To  東北大学, 金属材料研究所, 准教授 (10596547)

Co-Investigator(Kenkyū-buntansha) 野本 拓也  東京大学, 大学院工学系研究科(工学部), 助教 (60804200)
Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords磁性体 / 輸送現象 / 第一原理計算 / 磁性 / 反強磁性
Outline of Research at the Start

反強磁性の秩序パラメータ解析、第一原理計算手法による反強磁性の電子状態解析、反強磁性ドメインに対するスピンダイナミクスの計算手法の融合による、反強磁性ドメインのシミュレーション手法の構築に向けた研究に取り組む。この高精度な磁気ドメインダイナミクスのシミュレーション手法にもとづき、反強磁性ドメインの磁場下における磁壁の変動の違いを研究し、現実の結晶構造のもとで生じうる多様な磁気構造による磁気ドメイン形成の違いを系統的に調べ、反強磁性ドメインの形成機構の解明とその制御手法の研究に取り組む。

Outline of Final Research Achievements

We have studied the mechanism of physical properties under complex magnetic order formation with the evaluation of the magnetic structure of magnetic materials, and carried out research of transport phenomena in magnetic materials by first-principles calculations. We have extended the scope of our research to spin Hall effect and transport phenomena in magnetic materials under magnetic fields, and have studied the effects of magnetic and electronic structures on transport phenomena such as anomalous Hall effect, anomalous Nernst effect, spin Hall effect and topological Hall effect in magnetic materials under magnetic fields, as well as anomalous Hall effect and spin Hall effect in magnetic materials. The effects on transport phenomena were investigated in detail using first-principles calculations. These results are published as academic papers.

Academic Significance and Societal Importance of the Research Achievements

本研究成果は近年発見された反強磁性体における物性現象の理解を深め、磁性体の詳細な磁気構造と物性機構の関わりを明らかにし、また、詳細な磁気構造を取り入れた磁性体の物性評価手法の発展に貢献するものである。磁気的相互作用と磁気秩序の形成、及びその物性の予測手法の研究を通して、詳細な磁気構造の情報を取り込んだ磁性体の物性シミュレーション手法の発展へとつながる知見を得ている。これらの磁性状態の第一原理手法から得られる結果をスピンモデルの構築に活用していくことで、より実践的な磁気物性のシミュレーション手法の発展が期待できる。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (12 results)

All 2021 2020

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (8 results) (of which Invited: 3 results)

  • [Journal Article] Spin and anomalous Hall effects emerging from topological degeneracy in the Dirac fermion system CuMnAs2021

    • Author(s)
      Huyen Vu Thi Ngoc、Yanagi Yuki、Suzuki Michi-To
    • Journal Title

      Physical Review B

      Volume: 104 Issue: 3 Pages: 035110-035110

    • DOI

      10.1103/physrevb.104.035110

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] First-principles investigation of magnetic and transport properties in hole-doped shandite compounds Co3InxSn2-xS2InxSn2-xS22021

    • Author(s)
      Yanagi Yuki、Ikeda Junya、Fujiwara Kohei、Nomura Kentaro、Tsukazaki Atsushi、Suzuki Michi-To
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 20 Pages: 205112-205112

    • DOI

      10.1103/physrevb.103.205112

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Skyrmion-size dependence of the topological Hall effect: A real-space calculation2021

    • Author(s)
      Matsui Akira、Nomoto Takuya、Arita Ryotaro
    • Journal Title

      Physical Review B

      Volume: 104 Issue: 17 Pages: 174432-174432

    • DOI

      10.1103/physrevb.104.174432

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Benchmark for Ab Initio Prediction of Magnetic Structures Based on Cluster-Multipole Theory2021

    • Author(s)
      M.-T. Huebsch、T. Nomoto、M.-T. Suzuki, R.Arita
    • Journal Title

      Physical Review X

      Volume: 11 Issue: 1 Pages: 011031-011031

    • DOI

      10.1103/physrevx.11.011031

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Magnetic materials design by representation theory & first-principles calculation,2021

    • Author(s)
      鈴木通人
    • Organizer
      東京大学物性研究所理論セミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 準結晶における対称性適合な磁気構造の生成に向けた研究2021

    • Author(s)
      鈴木通人
    • Organizer
      新学術領域ハイパーマテリアル 第6回領域Web会議
    • Related Report
      2021 Annual Research Report
  • [Presentation] Numerical study on the transport phenomena in ferromagnetic and antiferromagnetic skyrmion systems2021

    • Author(s)
      Takuya Nomoto
    • Organizer
      APW-RIKEN-Tsinghua-Kavli workshop “Highlights on condensed matter physics"
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 磁気対称性の破れとトポロジーが生み出す巨大輸送現象の研究2021

    • Author(s)
      鈴木通人
    • Organizer
      スピントロニクス学術研究基盤と連携ネットワーク拠点 2020年度(令和2年度)年次報告会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Local environment representation of magnetic structure by multipole expansion2020

    • Author(s)
      鈴木通人
    • Organizer
      新学術領域ハイパーマテリアル 第5回領域Web会議
    • Related Report
      2020 Research-status Report
  • [Presentation] Magnetic structure analysis for approximants based on cluster multipole theory2020

    • Author(s)
      鈴木通人
    • Organizer
      新学術領域ハイパーマテリアル 第4回領域Web会議
    • Related Report
      2020 Research-status Report
  • [Presentation] 多極子理論とデータ科学の融合による物質設計2020

    • Author(s)
      鈴木通人
    • Organizer
      さきがけ研究領域「理論・実験・計算科学とデータ科学が連携・融合した先進的マテリアルズインフォマティクスのための基盤技術の構築」第10回領域会議
    • Related Report
      2020 Research-status Report
  • [Presentation] クラスター多極子法による準結晶の磁気構造と物性現象の研究2020

    • Author(s)
      鈴木通人
    • Organizer
      新学術領域ハイパーマテリアル 第3回領域Web会議,
    • Related Report
      2020 Research-status Report

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Published: 2020-08-03   Modified: 2023-01-30  

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