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Function control of a spin-lattice system and its critical phenomena

Research Project

Project/Area Number 21540343
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionShibaura Institute of Technology

Principal Investigator

NAKAMURA Tota  芝浦工業大学, 工学部, 教授 (50280871)

Co-Investigator(Renkei-kenkyūsha) NISHIWAKI Yoichi  芝浦工業大学, 工学部, 助教 (70439818)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords磁性 / スピングラス / フラストレーション / 臨界現象 / 磁気誘電体 / マルチフェロイクス / モンテカルロシミュレーション / スケーリング解析 / 磁気誘電同時転移
Research Abstract

We introduced a theoretical model for magneto-electric compounds, which are considered as a new candidate for magnetic and electric devices. By performing large-scale computer simulations, a detailed phase diagram with respect to the temperature and the magnetic field is obtained. A new ordered phase is predicted to occur, which is not identified by experiments yet. We have also developed a new scaling method to investigate the critical phenomena.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (9 results)

All 2011 2010

All Journal Article (5 results) (of which Peer Reviewed: 2 results) Presentation (4 results)

  • [Journal Article] Magnetoelectric transitions of a distorted triangular-lattice antiferromagnet in a magnetic field2011

    • Author(s)
      Tota Nakamura
    • Journal Title

      Physical ReviewB

      Volume: B84 Issue: 5

    • DOI

      10.1103/physrevb.84.054429

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
  • [Journal Article] High-Field Magnetization of Distorted Triangular Lattice Antiferromagnet RbCoBr32010

    • Author(s)
      Yoichi Nishiwaki, Masashi Tokunaga, Tota Nakamura, Norikazu Todoroki, and Tetsuya Kato
    • Journal Title

      Journal of Physical Society of Japan

      Volume: 79 Issue: 8 Pages: 084707-084707

    • DOI

      10.1143/jpsj.79.084707

    • NAID

      40017245123

    • Related Report
      2011 Final Research Report
  • [Journal Article] Nonequilibrium dynamic correlation-length scaling method2010

    • Author(s)
      Tota Nakamura
    • Journal Title

      Physical Review

      Volume: B82 Issue: 1

    • DOI

      10.1103/physrevb.82.014427

    • Related Report
      2011 Final Research Report
  • [Journal Article] Nonequilibrium dynamic correlation-length scaling method2010

    • Author(s)
      中村統太
    • Journal Title

      Physical Review B

      Volume: 82

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High-Field Magnetization of Distorted Triangular Lattice Antiferromagnet RbCoBr32010

    • Author(s)
      西脇洋一、徳永将史、中村統太、轟木義一、加藤徹也
    • Journal Title

      Journal of Physical Society of Japan

      Volume: 79

    • NAID

      40017245123

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 3次元イジングスピングラス模型の臨界線2011

    • Author(s)
      中村統太
    • Organizer
      日本物理学会2011秋季大会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-21
    • Related Report
      2011 Final Research Report
  • [Presentation] 3次元イジングスピングラス模型の臨界線2011

    • Author(s)
      中村統太
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-21
    • Related Report
      2011 Annual Research Report
  • [Presentation] 3次元イジングスピングラスの動的相関長スケーリング2011

    • Author(s)
      中村統太
    • Organizer
      日本物理学会第66回年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-25
    • Related Report
      2011 Final Research Report 2010 Annual Research Report
  • [Presentation] RbCoBr3の磁場中逐次相転移のシミュレーション2010

    • Author(s)
      中村統太
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大学津島キャンパス
    • Year and Date
      2010-03-23
    • Related Report
      2011 Final Research Report 2009 Annual Research Report

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Published: 2009-04-01   Modified: 2020-05-15  

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