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Elucidation of the mechanism of phase control and exploration of magnetic response functions in polymorphic magnets

Research Project

Project/Area Number 21K03441
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 13030:Magnetism, superconductivity and strongly correlated systems-related
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Aruga Katori Hiroko  東京農工大学, 工学(系)研究科(研究院), 教授 (10211707)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords多形 / 磁性 / 磁気応答機能 / 磁性体
Outline of Research at the Start

化学組成が同じで結晶構造が異なる相が複数存在する磁性体(多形磁性体)は、磁場による相制御が実現した場合、大きな磁気応答機能を持つことが期待される。そこで、本研究では多形磁性体で生じている相変化の機構を解明することにより、新規多形磁性体を創製する。また、この新規多形磁性体に対して、磁化・比熱などの測定により基礎物性の評価をおこない、巨大磁歪などの磁気応答機能を探索する。

Outline of Final Research Achievements

In this study, magnetic materials that have the same chemical composition but multiple phases with different crystal structures are called polymorphic magnetic materials. In addition, the definition of polymorphism is extended to include phase changes induced by chemical pressure. By elucidating the mechanism of the phase change occurring in these extended polymorphic magnetic materials, we aimed to create new polymorphic magnetic materials as functional materials.
The magnetic material A2BO5 (A=Al,V,Cr,Fe,Ga, B=Si,Ge), which have the same chemical composition as the polymorphic mineral Al2SiO5, was systematically studied. In particular, in AlxFe2-xGeO5 (x=0.09, 0.15), neutron scattering experiments have revealed that the weak ferromagnetism in the andalusite structure is due to the incommensurate magnetic structure.

Academic Significance and Societal Importance of the Research Achievements

多形の定義の拡張と相制御の機構の解明は、これまで見過ごしていた物質を多形磁性体として創製することを可能にするものである。また、現在発見されている多形における応答機能は、実用化にはかけ離れた環境下で生じることから、新規多形磁性体の基礎物性を評価することにより、実用化に適した磁気応答機能を持つ新たな多形物質の探索に繋げる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (29 results)

All 2024 2023 2022 2021 Other

All Journal Article (12 results) (of which Peer Reviewed: 12 results,  Open Access: 6 results) Presentation (16 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Remarks (1 results)

  • [Journal Article] Impact of oxidation state on the valence-bond glass physics in the lithium-intercalated Mo3O8 cluster Mott insulators2024

    • Author(s)
      Ishikita Daigo、Haraguchi Yuya、Katori Hiroko Aruga
    • Journal Title

      Physical Review B

      Volume: 109 Issue: 2 Pages: 024405-024405

    • DOI

      10.1103/physrevb.109.024405

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Monoclinic distortion in hyperhoneycomb Kitaev material β-ZnIrO3 revealed by improved sample quality2023

    • Author(s)
      Haraguchi Yuya、Katori Hiroko Aruga
    • Journal Title

      Chemistry Letters

      Volume: - Issue: 5 Pages: 404-407

    • DOI

      10.1246/cl.230108

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Magnetic Ordering in the Jeff = 0 Nickelate NiRh2O4 prepared via a solid-state metathesis2023

    • Author(s)
      Haraguchi Yuya、Nishio-Hamane Daisuke、Katori Hiroko Aruga
    • Journal Title

      Physical Review Materials

      Volume: 7 Issue: 8 Pages: 084413-084413

    • DOI

      10.1103/physrevmaterials.7.084413

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Perfect kagome-lattice antiferromagnets with Jeff = 1/2: The Co2+-analogs of copper minerals volborthite and vesignieite2022

    • Author(s)
      Haraguchi Yuya、Ohnoda Takehiro、Matsuo Akira、Kindo Koichi、Katori Hiroko Aruga
    • Journal Title

      Physical Review B

      Volume: 106 Issue: 21 Pages: 214421-214421

    • DOI

      10.1103/physrevb.106.214421

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Honeycomb lattice iridate on the verge of Mott-collapse2022

    • Author(s)
      Haraguchi Yuya、Katori Hiroko Aruga
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 34 Issue: 46 Pages: 465602-465602

    • DOI

      10.1088/1361-648x/ac916e

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] 低温イオン交換を用いた新しいキタエフ物質の開発ー固体化学の立場から見えてきたキタエフスピン液体の実現指針ー2022

    • Author(s)
      原口祐哉、香取浩子、道岡千城、植田浩明、吉村一良
    • Journal Title

      固体物理

      Volume: 57 Pages: 745-756

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Quantum paramagnetism in the hyperhoneycomb Kitaev magnet β-ZnIrO32022

    • Author(s)
      Haraguchi Yuya、Matsuo Akira、Kindo Koichi、Aruga Katori Hiroko
    • Journal Title

      Physical Review Materials

      Volume: 6 Issue: 2

    • DOI

      10.1103/physrevmaterials.6.l021401

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Spin-glass transition in the spin-orbit-entangled Jeff=0 Mott insulating double-perovskite ruthenate2022

    • Author(s)
      Yatsuzuka Hayato、Haraguchi Yuya、Matsuo Akira、Kindo Koichi、Aruga Katori Hiroko
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 06467-2

    • DOI

      10.1038/s41598-022-06467-2

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Formation of the Metastable Iron (III) Germanate Fe2GeO5 through Kinetic Control of the Oxidative Reaction2022

    • Author(s)
      Kakimoto Kazuo、Ohki Yoshiaki、Takada Saki、Haraguchi Yuya、Yamamoto Ayako、Aruga Katori Hiroko
    • Journal Title

      Chemistry Letters

      Volume: 51 Issue: 4 Pages: 451-454

    • DOI

      10.1246/cl.220024

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Magnetism of AlxFe2-xGeO5 with Andalusite Structure2022

    • Author(s)
      Kakimoto Kazuo、Takada Saki、Ohta Hiroto、Haraguchi Yuya、Hagihala Masato、Torii Shuki、Kamiyama Takashi、Mitamura Hiroyuki、Tokunaga Masashi、Hatakeyama Atsushi、Aruga Katori Hiroko
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 91 Issue: 5 Pages: 054704-054704

    • DOI

      10.7566/jpsj.91.054704

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sinusoidal Magnetic Structure of Andalusite-type AlxFe2-xGeO5 with x = 0.09 and 0.152022

    • Author(s)
      Kakimoto Kazuo、Ohta Hiroto、Haraguchi Yuya、Hagihala Masato、Torii Shuki、Kamiyama Takashi、Aruga Katori Hiroko
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 91 Issue: 5 Pages: 054707-054707

    • DOI

      10.7566/jpsj.91.054707

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Metallic state in the vicinity of molecular orbital crystallization in the d1 thiospinel ZnTi2S4 prepared via a reductive ion-exchange reaction2021

    • Author(s)
      Haraguchi Yuya、Arikai Hiroki、Aruga Katori Hiroko
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 33 Issue: 39 Pages: 395603-395603

    • DOI

      10.1088/1361-648x/ac1369

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] S=1 Ni2+ハニカム格子物質ANi2TeO6はキタエフ磁性体か?2023

    • Author(s)
      原口祐哉, 松尾晶, 金道浩一, 香取浩子
    • Organizer
      日本物理学会第78回年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 122型鉄系化合物KFe2P2における近藤効果2023

    • Author(s)
      若杉和弘, 原口祐哉, 中村真一, 勝藤拓郎, 香取浩子
    • Organizer
      日本物理学会第78回年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Co2+ハニカム格子量子磁性体の合成とKitaev磁性2023

    • Author(s)
      伊藤正明, 原口祐哉, 松尾晶, 金道浩一, 香取浩子
    • Organizer
      日本物理学会第78回年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 新しいダイヤモンド格子フラストレート磁性体における渦磁性の探索2023

    • Author(s)
      久米田理桜, 原口祐哉, 松尾晶, 金道浩一, 香取浩子
    • Organizer
      日本物理学会第78回年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ブリージング格子を有する磁性体における新奇フラストレート磁性の開拓2023

    • Author(s)
      北村昌大, 原口祐哉, 松尾晶, 金道浩一, 香取浩子
    • Organizer
      日本物理学会第78回年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 高スピンd7 Co2+ Jeff=1/2 完全カゴメ磁性体の水熱合成2023

    • Author(s)
      原口祐哉, 大野田豪宏, 松尾晶, 金道浩一, 香取浩子
    • Organizer
      日本物理学会 2023年春季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 固体化学の立場から見えてきたキタエフ磁性体の開発指針2022

    • Author(s)
      原口祐哉, 香取浩子
    • Organizer
      第32回日本MRS年次大会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] 新規キタエフ模型候補物質CaCo2TeO6の中性子回折2022

    • Author(s)
      浅井晋一郎, 原口祐哉, 香取浩子, 池田陽一, 益田隆嗣
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 過剰アルカリ金属インターカレート系Mo3クラスターMott絶縁体における創発的三角格子磁性2022

    • Author(s)
      石北大悟, 原口祐哉, 香取浩子
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 高スピンd7キタエフ磁性体CaCo2TeO6の磁気異方性評価2022

    • Author(s)
      原口祐哉, 吉田悠澄, 三宅厚志, 徳永将史, 香取浩子
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] 低温固相メタセシスによって合成した四面体配位d8系スピン軌道結合J=0磁性候補物質NiRh2O4における磁気秩序の観測2022

    • Author(s)
      原口祐哉, 松尾晶, 金道浩一, 香取浩子
    • Organizer
      日本物理学会2022年秋季大会
    • Related Report
      2022 Research-status Report
  • [Presentation] Frustrated magnetism in alkaline-intercalated Mo3O8-type compounds2022

    • Author(s)
      Daigo Ishikita, Yuya Haraguchi, Hiroko Aruga Katori
    • Organizer
      29th International Conference on Low Temperature Physics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Kitaev spin liquid signature in the hyperhoneycomb iridate2022

    • Author(s)
      Yuya Haraguchi, Akira Matsuo, Koichi Kindo, Hiroko Aruga Kator
    • Organizer
      29th International Conference on Low Temperature Physics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Memory Effects in the Ising Spin Glass System Fe0.5Mn0.5TiO32022

    • Author(s)
      Airi Furukawa, Hiroko Aruga Katori, Hazuki Kawano-Furukawa
    • Organizer
      29th International Conference on Low Temperature Physics
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 藍晶石型フェライトFe2GeO5の磁性2021

    • Author(s)
      柿本和勇, 原口祐哉, 三田村裕幸, 徳永将史, 畠山温, 香取浩子
    • Organizer
      第5回固体化学フォーラム研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] kyanite構造Fe2GeO5の磁性2021

    • Author(s)
      柿本和勇, 原口祐哉, 三田村裕幸, 徳永将史, 畠山温, 香取浩子
    • Organizer
      日本物理学会 2021年秋季大会
    • Related Report
      2021 Research-status Report
  • [Remarks] 香取研究室ホームページ

    • URL

      http://web.tuat.ac.jp/~katori/index.html

    • Related Report
      2022 Research-status Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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