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Ultrasound measurements under megagauss fields

Research Project

Project/Area Number 20K14403
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 13030:Magnetism, superconductivity and strongly correlated systems-related
Research InstitutionThe University of Tokyo

Principal Investigator

Nomura Toshihiro  東京大学, 物性研究所, 助教 (20845987)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywords超強磁場 / 超音波 / 酸素 / 非相反 / 量子スピン / 液体酸素 / 磁場誘起相転移 / 強磁場 / 相転移
Outline of Research at the Start

超音波測定は構造相転移や秩序パラメタの対称性を議論する上で強力な手法であり、金属・絶縁体を問わず多くの物質群に適用できる魅力的な測定プローブである。しかしながら、100テスラを超えるような超強磁場下では実験的制約が多く、これまで超音波と組み合わせた測定は不可能と考えられてきた。本申請ではCW法(連続励起法)と位相検波法を組み合わせた高速な超音波計測技術を提案し、超磁場領域における格子物性測定に挑戦する。

Outline of Final Research Achievements

A new method for measuring ultrasonic sound velocity of materials has been successfully developed in combination with the single-turn coil method, a destructive magnetic field generation technique. By applying the developed method to liquid oxygen, quantum spin systems, and heavy fermion systems, we succeeded in obtaining information on the change of elastic constants of materials in the ultrahigh magnetic field-induced phase transitions. In particular, for liquid oxygen, we obtained results suggesting a precursor of the liquid-liquid phase transition induced by a magnetic field. In addition, a giant elastic anomaly in the 1/2 plateau phase was observed in the two-dimensional quantum spin system SrCu2(BO3)2. The developed measurement technique is expected to be a powerful tool to explore ultrahigh magnetic field physics in the future.

Academic Significance and Societal Importance of the Research Achievements

これまで磁場中物性に関する複数の研究がノーベル賞の対象になっていることからわかるように、強磁場下における物質の性質は多彩かつ複雑であり、未だに固体物理のフロンティアにある。超強磁場下における物性測定には多くの制限があり、これまで格子物性に関する情報はほとんど報告例が無かった。本研究では新たに音速(弾性定数)に関する情報を得る計測手法を開発し、物性測定に応用した。本研究で開発した手法は他の物質群にも適用可能であり、超強磁場下での新たな物性を探索する上で強力な手法となる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (24 results)

All 2023 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (10 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 9 results,  Open Access: 5 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Book (1 results) Remarks (4 results)

  • [Int'l Joint Research] HLD-HZDR(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Univ. of Amsterdam(オランダ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] EPFL(スイス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] CNRS/CEA(フランス)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Quantum oscillations in the centrosymmetric skyrmion-hosting magnet GdRu2Si22023

    • Author(s)
      N. Matsuyama, T. Nomura, S. Imajo, T. Nomoto, R. Arita, K. Sudo, M. Kimata, N. D. Khanh, R. Takagi, Y. Tokura, S. Seki, K. Kindo, Y. Kohama
    • Journal Title

      Physical Review B

      Volume: 107 Issue: 10 Pages: 104421-104421

    • DOI

      10.1103/physrevb.107.104421

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High-mobility two-dimensional carriers from surface Fermi arcs in magnetic Weyl semimetal films2022

    • Author(s)
      Kaneta-Takada Shingo、Wakabayashi Yuki K.、Krockenberger Yoshiharu、Nomura Toshihiro、Kohama Yoshimitsu、Nikolaev Sergey A.、Das Hena、Irie Hiroshi、Takiguchi Kosuke、Ohya Shinobu、Tanaka Masaaki、Taniyasu Yoshitaka、Yamamoto Hideki
    • Journal Title

      npj Quantum Materials

      Volume: 7 Issue: 1 Pages: 1-12

    • DOI

      10.1038/s41535-022-00511-0

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Emergent anisotropy in the Fulde-Ferrell-Larkin-Ovchinnikov state2022

    • Author(s)
      Imajo Shusaku、Nomura Toshihiro、Kohama Yoshimitsu、Kindo Koichi
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 5590-5590

    • DOI

      10.1038/s41467-022-33354-1

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Magnetically Hidden State on the Ground Floor of the Magnetic Devil’s Staircase2022

    • Author(s)
      Imajo S.、Matsuyama N.、Nomura T.、Kihara T.、Nakamura S.、Marcenat C.、Klein T.、Seyfarth G.、Zhong C.、Kageyama H.、Kindo K.、Momoi T.、Kohama Y.
    • Journal Title

      Physical Review Letters

      Volume: 129 Issue: 14 Pages: 147201-147201

    • DOI

      10.1103/physrevlett.129.147201

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The Shastry-Sutherland Compound SrCu2(BO3)2 Studied up to the Saturation Magnetic Field2022

    • Author(s)
      T. Nomura, P. Corboz, A. Miyata, S. Zherlitsyn, Y. Ishii, Y. Kohama, Y. H. Matsuda, A. Ikeda, C. Zhong, H. Kageyama, F. Mila
    • Journal Title

      arxiv

      Volume: 2209 Pages: 07652-07652

    • Related Report
      2022 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] Ferroelectric Transition of a Chiral Molecular Crystal BINOL2DMSO2022

    • Author(s)
      Nomura Toshihiro、Yajima Takeshi、Yang Zhuo、Kurihara Ryosuke、Ishii Yuto、Tokunaga Masashi、Matsuda Yasuhiro H.、Kohama Yoshimitsu、Kimura Kenta、Kimura Tsuyoshi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 91 Issue: 6 Pages: 064702-064702

    • DOI

      10.7566/jpsj.91.064702

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Solid and Liquid Oxygen under Ultrahigh Magnetic Fields2022

    • Author(s)
      Nomura Toshihiro、Matsuda Yasuhiro H.、Kobayashi Tatsuo C.
    • Journal Title

      Oxygen

      Volume: 2 Issue: 2 Pages: 152-163

    • DOI

      10.3390/oxygen2020013

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Time-resolved measurements in pulsed magnetic fields2022

    • Author(s)
      Kohama Yoshimitsu、Nomura Toshihiro、Zherlitsyn Sergei、Ihara Yoshihiko
    • Journal Title

      Journal of Applied Physics

      Volume: 132 Issue: 7 Pages: 070903-070903

    • DOI

      10.1063/5.0093985

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Physical properties of liquid oxygen under ultrahigh magnetic fields2021

    • Author(s)
      Nomura T.、Ikeda A.、Gen M.、Matsuo A.、Kindo K.、Kohama Y.、Matsuda Y. H.、Zherlitsyn S.、Wosnitza J.、Tsuda H.、Kobayashi T. C.
    • Journal Title

      Physical Review B

      Volume: 104 Issue: 22 Pages: 224423-224423

    • DOI

      10.1103/physrevb.104.224423

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ultrasound measurement technique for the single-turn-coil magnets2021

    • Author(s)
      Nomura T.、Hauspurg A.、Gorbunov D. I.、Miyata A.、Schulze E.、Zvyagin S. A.、Tsurkan V.、Matsuda Y. H.、Kohama Y.、Zherlitsyn S.
    • Journal Title

      Review of Scientific Instruments

      Volume: 92 Issue: 6 Pages: 063902-063902

    • DOI

      10.1063/5.0045209

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] カイラル強磁性体Co9Zn9Mn2におけるフォノンの非相反物性2023

    • Author(s)
      野村肇宏
    • Organizer
      日本物理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 酸素の超強磁場物性に関する研究2023

    • Author(s)
      野村肇宏
    • Organizer
      日本物理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 直交ダイマー系物質SrCu2(BO3)2の飽和磁場までの格子物性2022

    • Author(s)
      野村肇宏
    • Organizer
      日本物理学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Acoustic properties of SrCu2(BO3)2 up to the saturation magnetic fields2022

    • Author(s)
      T. Nomura
    • Organizer
      HFM2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quest for a Magnetic-field-induced Liquid-liquid Transition of Oxygen by Ultrasound Measurements in Megagauss Region2021

    • Author(s)
      Toshihiro Nomura
    • Organizer
      1st Asia-Pacific Conference on Condensed Matter Physics 2021(AC2MP2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Book] 固体物理2023

    • Author(s)
      野村肇宏
    • Publisher
      アグネ技術センター
    • Related Report
      2022 Annual Research Report
  • [Remarks] 「磁気的な悪魔の階段」の手前に「隠れた状態」を発見

    • URL

      https://www.issp.u-tokyo.ac.jp/maincontents/news2.html?pid=16660

    • Related Report
      2022 Annual Research Report
  • [Remarks] 新しいカイラル有機強誘電体の発見

    • URL

      https://www.issp.u-tokyo.ac.jp/maincontents/news2.html?pid=15824

    • Related Report
      2022 Annual Research Report
  • [Remarks] 強磁場中でも生き残る空間的に変調した超伝導を有機物中で発見

    • URL

      https://www.issp.u-tokyo.ac.jp/maincontents/news2.html?pid=16626

    • Related Report
      2022 Annual Research Report
  • [Remarks] 室温付近まで維持される音波の非相反物性の発見

    • URL

      https://www.issp.u-tokyo.ac.jp/maincontents/news2.html?pid=18369

    • Related Report
      2022 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

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