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Study on the structure and magnetism of crystals composed of spin icosahedra

Research Project

Project/Area Number 16H04018
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionTokyo University of Science

Principal Investigator

Tamura Ryuji  東京理科大学, 基礎工学部材料工学科, 教授 (50307708)

Research Collaborator Gomez Cesar Pay  
Sato Taku J  
Cao Huibo  
Hiroto Takanobu  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥18,200,000 (Direct Cost: ¥14,000,000、Indirect Cost: ¥4,200,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2016: ¥12,090,000 (Direct Cost: ¥9,300,000、Indirect Cost: ¥2,790,000)
Keywords正20面体クラスター / 近似結晶 / 準結晶 / 磁性 / 正20面体 / スピンクラスター / クラスター磁性 / 金属物性 / スピン20面体
Outline of Final Research Achievements

This study was conducted to elucidate the properties of ferromagnetic spin icosahedron in crystals and also to establish the method to controll the magnetism of spin icosahedron crystals. There are three main research results, and firstly, single crystal structure analyses of the Au-Al-(Gd,Tb) spin icosahedron crystals were conducted, and their structures were determined. Second, powder neutron diffraction experiments of the Au-Al-Tb spin icosahedron crystal were conducted, and their magnetic structures were determined. Thirdly, spin icosahedron crystals were prepared in many alloy systems, and it is found that the magnetic ground state can be well tuned only by the number of average valence electrons, and the existence range of spin glasses, ferromagnetism, antiferromagnetic phases,was elucidated. To summarize, the method of controlling the magnetism of spin icosahedron crystals has been well established by this study.

Academic Significance and Societal Importance of the Research Achievements

本研究により、固体中の正20面体が精緻な磁性物理学の対象となった。とりわけ、5つしかないプラトンの正凸多面体のうちの2つの多面体(正12面体、正20面体)を構造単位に有する夥しい結晶群の磁性の理解への第一歩と見なすことができる。また、本研究は、“クラスター磁石”という学問領域が物理学・材料科学において創出されるための第一歩とも見なすことができる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (39 results)

All 2019 2018 2017 2016

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Acknowledgement Compliant: 2 results) Presentation (36 results) (of which Int'l Joint Research: 13 results,  Invited: 5 results)

  • [Journal Article] Antiferromagnetic order is possible in ternary quasicrystal approximants2018

    • Author(s)
      A. Ishikawa, T. Fujii, T. Takeuchi, T. Yamada, Y. Matsushita, and R. Tamura
    • Journal Title

      Physical Review B

      Volume: 98 Issue: 22

    • DOI

      10.1103/physrevb.98.220403

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Probing of the pseudogap via thermoelectric properties in the Au-Al-Gd quasicrystal approximant2017

    • Author(s)
      Asuka Ishikawa, Yoshiki Takagiwa Kaoru Kimura and Ryuji Tamura
    • Journal Title

      Physical Review B

      Volume: 95 Issue: 10 Pages: 104201-104201

    • DOI

      10.1103/physrevb.95.104201

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Phenomenological Magnetic Model in Tsai-Type Approximants2016

    • Author(s)
      Takanori Sugimoto, Takami Tohyama, Takanobu Hiroto, Ryuji Tamura
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 85 Issue: 5 Pages: 053701-053701

    • DOI

      10.7566/jpsj.85.053701

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Ag-Ga-R系準結晶及び近似結晶の作製と磁性2019

    • Author(s)
      小室和樹 鈴木慎太郎 田村隆治
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Au-Al-Tb系近似結晶の磁性2019

    • Author(s)
      櫻井晶 鈴木慎太郎 藤井武則 常盤和靖 田村隆治
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Au-Ga-Ce系1/1近似結晶の作製と電気抵抗2019

    • Author(s)
      元売明瑞紗 鈴木慎太郎 服部将之 田村隆治
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Au-(Ga,Ge)-Ce系1/1近似結晶の磁性2019

    • Author(s)
      鈴木慎太郎 元売明瑞紗 尾中槙子 田村隆治
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 正二十面体準結晶のフェイゾン比熱2019

    • Author(s)
      張旋 伊田佳祐 田村隆治 上村祥史 徳本有紀 枝川圭一
    • Organizer
      日本物理学会 第74回年次大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 新規Ag系準結晶の作製2018

    • Author(s)
      小室和樹 田村隆治
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Ag-SM-RE系準結晶の作製と磁性2018

    • Author(s)
      長沼慶祐 田村隆治
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Au系Tsai型1/1近似結晶の単結晶作製と磁性2018

    • Author(s)
      稲垣和樹 石川明日香 常盤和靖 廣戸孝信 藤井武則 田村隆治
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Au-Al-Tb系近似結晶の作製と磁性Ⅱ2018

    • Author(s)
      櫻井晶 石川明日香 常盤和靖 藤井武則 田村隆治
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Au-SM-RE系1/1近似結晶の物性2018

    • Author(s)
      服部将之 石川明日香 常盤和靖 室裕司 藤井武則 田村隆治
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Au-SM-Eu系近似結晶の作製と磁性2018

    • Author(s)
      吉田昌平 田村隆治
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Au-Al-Tb近似結晶の磁気構造2018

    • Author(s)
      佐藤卓 石川明日香 櫻井晶 Maxim Avdeev 田村隆治
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Au-Al-RE系1/1近似結晶の磁性2017

    • Author(s)
      石川明日香,常盤和靖,藤井武則,竹内恒博,田村隆治
    • Organizer
      第21回準結晶研究会
    • Place of Presentation
      北海道大学 (北海道・札幌市)
    • Year and Date
      2017-03-02
    • Related Report
      2016 Annual Research Report
  • [Presentation] Au-Al-Yb系1/1近似結晶の作製と磁性2017

    • Author(s)
      伊藤夏,石川明日香,廣戸孝信,常盤和靖,室裕司,前島尚行,町田晃彦,綿貫徹,田村隆治
    • Organizer
      第21回準結晶研究会
    • Place of Presentation
      北海道大学 (北海道・札幌市)
    • Year and Date
      2017-03-02
    • Related Report
      2016 Annual Research Report
  • [Presentation] Au-Sn-Yb系2/1近似結晶の作製と磁性2017

    • Author(s)
      佐々木伶,常盤和靖,田村隆治
    • Organizer
      第21回準結晶研究会
    • Place of Presentation
      北海道大学 (北海道・札幌市)
    • Year and Date
      2017-03-02
    • Related Report
      2016 Annual Research Report
  • [Presentation] Au-SM-Gd(SM=Al,Ga)系1/1近似結晶の電気伝導2017

    • Author(s)
      服部将之,石川明日香,常盤和靖,室裕司,竹内恒博,田村隆治
    • Organizer
      第21回準結晶研究会
    • Place of Presentation
      北海道大学 (北海道・札幌市)
    • Year and Date
      2017-03-02
    • Related Report
      2016 Annual Research Report
  • [Presentation] Au-Al-Ce系近似結晶の作製2017

    • Author(s)
      櫻井晶,石川明日香,田村隆治
    • Organizer
      第21回準結晶研究会
    • Place of Presentation
      北海道大学 (北海道・札幌市)
    • Year and Date
      2017-03-02
    • Related Report
      2016 Annual Research Report
  • [Presentation] Magnetism of Tsai-type approximants2017

    • Author(s)
      Ryuji Tamura
    • Organizer
      Open space between aperiodic order and strong electronic correlations
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Magnetic properties of compounds made of rare-earth icosahedra2017

    • Author(s)
      Ryuji Tamura, Asuka Ishikawa
    • Organizer
      International Conference on Frontiers in Materials Processing Applications, Research ^ Technology
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 正20面体クラスター固体の磁気転移2017

    • Author(s)
      田村 隆治
    • Organizer
      日本物理学会 第73回年次大会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Magnetism in compounds made of rare-earth icosahedra2016

    • Author(s)
      Ryuji. Tamura, Asuka. Ishikawa
    • Organizer
      India - Japan Symposium on Science and Technology for Sustainability
    • Place of Presentation
      インド大使館 (東京都・千代田区)
    • Year and Date
      2016-12-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Magnetic properties of rare-earth containing Tsai-type approximants2016

    • Author(s)
      A. Ishikawa, T. Hiroto, K. Tokiwa, T. Fujii, T. Takeuchi, and R. Tamura
    • Organizer
      India - Japan Symposium on Science and Technology for Sustainability
    • Place of Presentation
      インド大使館 (東京都・千代田区)
    • Year and Date
      2016-12-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Synthesis and magnetic properties of the Au-Al-Yb approximant2016

    • Author(s)
      N. Ito, A. Ishikawa, T. Hiroto, K. Tokiwa, T. Watanuki and R. Tamura
    • Organizer
      India - Japan Symposium on Science and Technology for Sustainability
    • Place of Presentation
      インド大使館 (東京都・千代田区)
    • Year and Date
      2016-12-15
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Magnetic properties of rare-earth containing Tsai-type approximants2016

    • Author(s)
      A. Ishikawa, T. Hiroto, K. Tokiwa, T. Fujii, T. Takeuchi, and R. Tamura
    • Organizer
      13th INTERNATIONAL CONFERENCE ON QUASICRYSTALS
    • Place of Presentation
      Kathmandu (Nepal)
    • Year and Date
      2016-09-18
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Synthesis and magnetic properties of the Au-Al-Yb approximant2016

    • Author(s)
      N. Ito, A. Ishikawa, T. Hiroto, K. Tokiwa, T. Watanuki and R. Tamura
    • Organizer
      13th INTERNATIONAL CONFERENCE ON QUASICRYSTALS
    • Place of Presentation
      Kathmandu (Nepal)
    • Year and Date
      2016-09-18
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Synthesis and electronic properties of the Au-Sn-Yb approximant2016

    • Author(s)
      R. Sasaki, T. Hiroto, T. Fujii and R. Tamura
    • Organizer
      13th INTERNATIONAL CONFERENCE ON QUASICRYSTALS
    • Place of Presentation
      Kathmandu (Nepal)
    • Year and Date
      2016-09-18
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Synthesis of Au-Ga-Yb qusicrystal2016

    • Author(s)
      Y. Tanaka, T. Seki, N. Shibata, T. Fujii, R. Tamura
    • Organizer
      13th INTERNATIONAL CONFERENCE ON QUASICRYSTALS
    • Place of Presentation
      Kathmandu (Nepal)
    • Year and Date
      2016-09-18
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Au-Al-Gd系1/1近似結晶の磁性2016

    • Author(s)
      石川明日香,常盤和靖,藤井武則,田村隆治
    • Organizer
      日本物理学会 2016年秋季大会
    • Place of Presentation
      金沢大学 角間キャンパス(石川県・金沢市)
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] Au-Al-Yb系1/1近似結晶の作製と磁性2016

    • Author(s)
      伊藤夏,石川明日香,廣戸孝信,常盤和靖,室裕司,前島尚行,町田晃彦,綿貫徹,田村隆治
    • Organizer
      日本物理学会 2016年秋季大会
    • Place of Presentation
      金沢大学 角間キャンパス(石川県・金沢市)
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] Au-Ga-Gd系近似結晶の電気伝導2016

    • Author(s)
      服部将之,石川明日香,常盤和靖,田村隆治
    • Organizer
      日本物理学会 2016年秋季大会
    • Place of Presentation
      金沢大学 角間キャンパス(石川県・金沢市)
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] Tsai型近似結晶の有効磁気模型における結晶場効果2016

    • Author(s)
      杉本武則, 遠山貴己, 廣戸孝信, 服部将之, 田村隆治
    • Organizer
      日本物理学会 2016年秋季大会
    • Place of Presentation
      金沢大学 角間キャンパス(石川県・金沢市)
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] Au-Si-Tb Tsai型近似結晶の中性子非弾性散乱実験2016

    • Author(s)
      廣戸孝信, 佐藤卓, 羽合孝文, 横尾哲也, 伊藤晋, 田村隆治
    • Organizer
      日本物理学会 2016年秋季大会
    • Place of Presentation
      金沢大学 角間キャンパス(石川県・金沢市)
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] Magnetic properties of Au-based Tsai-type appoximants2016

    • Author(s)
      Ryuji Tamura
    • Organizer
      30th European Crystallographic Meeting
    • Place of Presentation
      Basel, Switzerland
    • Year and Date
      2016-08-28
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Magnetic properties of compounds made of rare-earth icosahedra2016

    • Author(s)
      Ryuji Tamura
    • Organizer
      EMN meeting
    • Place of Presentation
      Melbourne, Australia
    • Year and Date
      2016-08-10
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Magnetic properties of Au-based Tsai-type approximants2016

    • Author(s)
      Ryuji. Tamura
    • Organizer
      20th International Conference on Solid Compounds of Transition Elements
    • Place of Presentation
      Zaragoza (SPAIN)
    • Year and Date
      2016-04-11
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Synthesis and magnetic properties of Au-Al-Gd approximants2016

    • Author(s)
      Asuka. Ishikawa, Takanobu. Hiroto, Kazuyasu. Tokiwa, Takenori. Hujii, Tsunehiro. Takeuchi, Ryuji. Tamura
    • Organizer
      20th International Conference on Solid Compounds of Transition Elements
    • Place of Presentation
      Zaragoza (SPAIN)
    • Year and Date
      2016-04-11
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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