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Investigation of magnetic structures for lanthanoid ferromagnetic elements under high pressure

Research Project

Project/Area Number 19KK0070
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 13:Condensed matter physics and related fields
Research InstitutionKyushu Institute of Technology

Principal Investigator

Mito Masaki  九州工業大学, 大学院工学研究院, 教授 (60315108)

Co-Investigator(Kenkyū-buntansha) 片宗 優貴  九州工業大学, 大学院工学研究院, 准教授 (50772662)
高阪 勇輔  大阪公立大学, 大学院工学研究科, 助教 (60406832)
Project Period (FY) 2019-10-07 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2023: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2022: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2021: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2020: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords高圧実験 / 磁気測定 / 中性子回折実験 / 希土類強磁性元素 / 高圧力下中性子回折 / 高圧力下磁気測定 / ランタノイド系単一元素強磁性体 / ランタノイド系 / 強磁性 / 希土類金属 / 高圧力 / 中性子回折 / 希土類 / 強磁性体
Outline of Research at the Start

本申請課題で、希土類強磁性体の高圧物性における未解決問題に決着を付ける。磁気測定の結果は、5-15 GPaの高圧力下でランタノイド系強磁性元素の磁気秩序が消失するであろうことを示唆している。しかし、常圧で磁気測定と一致する温度で異常を示す電気抵抗では、特徴的な抵抗異常は100 GPaでも観測されている。本研究は、我々の世界最高レベルの「高圧力下磁気測定」と、スペインがLaue-Langevin研究所で進行中の“Xtreme-Dプロジェクト”の協力を得て進める世界最先端の高圧・低温中性子回折との共同研究によって、希土類強磁性元素の高圧力下での磁性状態を徹底的に解明する。

Outline of Final Research Achievements

We have developed the technique of magnetic measurements under high pressure environment, and have targeted single-element ferromagnets. There we have often observed the decrease in Curie temperatures and the reduction of the magnetic signal. However, there is a detectable limit in any magnetic measurements, and we cannot conclude that there magnetic orders survive or not. Thus, we have started the low-temperature and high-pressure neutron diffraction experiments in the Laue-Langevin institute along with Spanish and French groups, such that we have succeeded in constructing the nice research group for the research of the high-pressure magnetism.

Academic Significance and Societal Importance of the Research Achievements

我が国の高圧・低温下における精密磁気測定は、諸外国と比べても高い実験技術に裏付けられた優位性を有している。しかし、グループ内で協力して実験技術を成熟させ、サイエンスを発展させていこうとする団結力は、西欧のグループに一日の長がある。例えば、高圧物性研究における高圧力下中性子回折実験がそれに当たる。そこで、我々の超伝導量子干渉素子を用いた高圧力下精密磁気測定とILLの低温高圧中性子回折実験のタイアップを計画し、実際、それを実現させることが出来たことは国際共同研究の一つの在り方として学術的にも社会的にも意義深い。

Report

(6 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (26 results)

All 2024 2023 2022 2021 2020 2019 Other

All Int'l Joint Research (8 results) Journal Article (11 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 11 results,  Open Access: 3 results) Presentation (4 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] ザラザラ大学(スペイン)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] ラウエランジェバン研究所(フランス)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Zaragoza Univ.(スペイン)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] ILL(フランス)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] Zaragoza Univ.(スペイン)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] The Institut Laue-Langevin(フランス)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] Zaragoza Univ./ICMA/CSIC(スペイン)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] The Institut Laue-Langevin(フランス)

    • Related Report
      2019 Research-status Report
  • [Journal Article] High pressure studies of the T-P phase diagrams of erbium and thulium up to 30GPa by using ac magnetization experiments2024

    • Author(s)
      Mito Masaki、Kimura Yuta、Campo Javier
    • Journal Title

      Physical Review B

      Volume: 109 Issue: 6 Pages: 64414-64414

    • DOI

      10.1103/physrevb.109.064414

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Revisiting the magnetic structure of Holmium at high pressure by using neutron diffraction2023

    • Author(s)
      M. Pardo-Sainz , F. Cova, J. A. Rodriguez-Velamazan, I. Puente-Orench, Y. Kousaka, M. Mito and J. Campo
    • Journal Title

      Scientific Reports

      Volume: 13 Issue: 1 Pages: 12168-12168

    • DOI

      10.1038/s41598-023-39284-2

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 超伝導量子干渉素子を用いた高圧力下磁気測定2023

    • Author(s)
      美藤 正樹
    • Journal Title

      高圧力の科学と技術

      Volume: 32 Pages: 138-146

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 超伝導量子干渉素子を用いた高圧力下磁気測定2023

    • Author(s)
      美藤正樹
    • Journal Title

      高圧力の科学と技術

      Volume: -

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] New magnetic intermediate state, “B-phase”, in the cubic chiral magnet MnSi2022

    • Author(s)
      M. Ohkuma, M. Mito, M. Pardo-Sainz, Y. Kousaka, S. Iwasaki, K. Ohishi, J. Akimitsu, K. Inoue, V. Laliena, and J. Campo
    • Journal Title

      APL Materials

      Volume: 10 Issue: 4 Pages: 041104-041104

    • DOI

      10.1063/5.0084342

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High-pressure magnetic properties of antiferromagnetic samarium up to 30 GPa using a SQUID-based vibrating coil magnetometer2021

    • Author(s)
      Masaki Mito, Hirotaka Kondo, Taiki Arase, Kunihiko Irie, Seishi Takagi, Hiroyuki Deguchi, Takayuki Tajiri, and Mamoru Ishizuka
    • Journal Title

      Physical Review B

      Volume: 104 Issue: 5 Pages: 054431-054431

    • DOI

      10.1103/physrevb.104.054431

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Relationship of magnetic ordering and crystal structure in the lanthanide ferromagnets Gd, Tb, Dy, and Ho at high pressures2021

    • Author(s)
      Mito Masaki, Kimura Yuta, Yamakata Kanako, Ohkuma Masahiro, Chayamichi Hirotaka, Tajiri Takayuki, Deguchi Hiroyuki, Ishizuka Mamoru
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 2 Pages: 24444-24444

    • DOI

      10.1103/physrevb.103.024444

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Magnetic measurements of hydrogen desorption from palladium hydride PdH0:64 prepared by severe plastic deformation2020

    • Author(s)
      M. Mito, T. Fukuyama, Y. Kitamura, H. Deguchi, K. Edalati, Z. Horita
    • Journal Title

      Journal of Applied Physics

      Volume: 127 Issue: 21 Pages: 215109-215109

    • DOI

      10.1063/5.0010025

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of uniaxial pressure on the spin ice Ho2Ti2O72020

    • Author(s)
      Edberg R., Bakke I. M. B, Kondo H., Sandberg L.Orduk, Haubro M. L., Guthrie M., Holmes A. T., Engqvist J., Wildes A., Matsuhira K., Lefmann K., Deen P. P., Mito M., Henelius P.
    • Journal Title

      Physical Review B

      Volume: 102 Issue: 18 Pages: 184408-184408

    • DOI

      10.1103/physrevb.102.184408

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Crystal structure of high-density Fe56 cluster Nd2Fe14B under high pressure2020

    • Author(s)
      Tajiri Takayuki、Mito Masaki
    • Journal Title

      Journal of Magnetism and Magnetic Materials

      Volume: 498 Pages: 166163-166163

    • DOI

      10.1016/j.jmmm.2019.166163

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Strong suppression of Curie temperature of spin-polarized ferromagnet La1?xSrxMnO3 by application of dynamic strain2020

    • Author(s)
      Mito M.、Tsuruta K.、Tajiri T.、Ikeda N.、Ohkuma M.、Kohno A.、Konishi K.、Deguchi H.
    • Journal Title

      AIP Advances

      Volume: 10 Issue: 2 Pages: 025220-025220

    • DOI

      10.1063/1.5124951

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 超小型ダイヤモンドアンビルセルとSQUID磁束計を用いた Liの高圧力磁気測定2022

    • Author(s)
      荒牧武生,美藤正樹
    • Organizer
      第63回高圧討論会
    • Related Report
      2022 Research-status Report
  • [Presentation] ランタノイド系強磁性体Tm, Erにおける高圧力下磁気測定2020

    • Author(s)
      木村祐太, 美藤正樹, 出口博之
    • Organizer
      第126 回日本物理学会九州支部例会
    • Related Report
      2020 Research-status Report
  • [Presentation] 希土類金属強磁性体Dy, Tb, Ho の高圧力下磁気測定2019

    • Author(s)
      木村祐太, 近藤広隆, 大隈理央, 美藤正樹, 出口博之
    • Organizer
      第125回日本物理学会 九州支部例会
    • Related Report
      2019 Research-status Report
  • [Presentation] 希土類金属元素サマリウムの高圧力下磁気測定2019

    • Author(s)
      近藤広隆, 荒瀬太輝, 本原拓弥, 美藤正樹, 高木精志, 石塚守
    • Organizer
      第125回日本物理学会 九州支部例会
    • Related Report
      2019 Research-status Report
  • [Remarks] 「ホルミウムの高圧力下の強磁性磁気秩序の有無」の真偽を明らかにしました。

    • URL

      https://www.kyutech.ac.jp/whats-new/topics/entry-10037.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 単一元素金属における54番目の超伝導現象を発見― サマリウムの高圧力下磁気測定をはじめて成功 ―

    • URL

      https://www.kyutech.ac.jp/whats-new/press/entry-8481.html

    • Related Report
      2021 Research-status Report
  • [Patent(Industrial Property Rights)] 導電性反磁性材料の生産方法及び導電性反磁性材料2021

    • Inventor(s)
      美藤正樹
    • Industrial Property Rights Holder
      美藤正樹
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Research-status Report

URL: 

Published: 2019-10-10   Modified: 2025-01-30  

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