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Research of quantum phase transitions under high magnetic field using synchrotron x-rays

Research Project

Project/Area Number 22244047
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

INAMI Toshiya  独立行政法人日本原子力研究開発機構, 原子力科学研究部門量子ビーム応用研究センター, 研究主幹 (30354989)

Co-Investigator(Kenkyū-buntansha) MATSUDA Yasuhiro  東京大学, 物性研究所, 准教授 (10292757)
OKAMOTO Jun  大学共同利用機関法人高エネルギー加速器研究機構, 物質構造科学研究所, 特任助教 (50555258)
Project Period (FY) 2010-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥42,250,000 (Direct Cost: ¥32,500,000、Indirect Cost: ¥9,750,000)
Fiscal Year 2013: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2012: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2011: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
Fiscal Year 2010: ¥19,110,000 (Direct Cost: ¥14,700,000、Indirect Cost: ¥4,410,000)
Keywordsパルス磁場 / X線吸収分光 / 価数転移 / メタ磁性転移 / cf混成 / 価数揺動 / スピン状態転移 / X線吸収分光
Research Abstract

In this research project, we applied microscopic techniques that utilize synchrotron x-rays, such as x-ray absorption spectroscopy, to quantum phase transitions that occur at low temperatures and in high magnetic fields in order to reveal the order parameters and the electronic states in the quantum critical regime. In Ce-based heavy Fermion compounds, we measured the Ce valence as a function of magnetic field in detail and revealed how itinerancy of the 4f electrons is suppressed by magnetic field. In Yb-based heavy Fermion compounds, it was found that a valence transition gives rise to the metamagnetic transition in YbAgCu4 and that the electronic anomalies reported so far in YbRh2Si2 are not accompanied by a large change in electronic structure, such as Fermi surface reconstruction.

Report

(5 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (30 results)

All 2014 2013 2012 2011 2010 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (22 results) Remarks (2 results)

  • [Journal Article] Temperature and Magnetic Field Dependent Yb Valence in YbRh_2Si_2 Observed by X-ray Absorption Spectroscopy2013

    • Author(s)
      Hirohito NAKAI, Takao EBIHARA, Satoshi TSUTSUI, Masaichiro MIZUMAKI, Naomi KAWAMURA, Shinji MICHIMURA, Toshiya INAMI, Toshiyuki NAKAMURA, Akihiro KONDO, Koichi KINDO, and Yasuhiro H. MATSUDA
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: Vol. 82 Issue: 12 Pages: 124712-124712

    • DOI

      10.7566/jpsj.82.124712

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Synchrotron X-ray Spectroscopy Study on the Valence State in α-and β-YbAlB_4 at Low Temperatures and High Magnetic Fields2013

    • Author(s)
      Y. H. Matsuda, T. Nakamura, K. Kuga, S. Nakatsuji, S. Michimura, T. Inami, N. Kawamura and M. Mizumaki
    • Journal Title

      Journal of the Korean Physical Society

      Volume: Vol. 62, No. 12 Issue: 12 Pages: 1778-1781

    • DOI

      10.3938/jkps.62.1778

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] X-ray Diffraction and Absorption Spectroscopy in Pulsed High Magnetic Fields2013

    • Author(s)
      Yasuhiro H. MATSUDA and Toshiya INAMI
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: Vol. 82

    • NAID

      210000132378

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] X-ray Diffraction and Absorption Spectroscopy in Pulsed High Magnetic Fields2013

    • Author(s)
      Yasuhiro H. Matsuda
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 82 Issue: 2 Pages: 21009-21009

    • DOI

      10.7566/jpsj.82.021009

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] High Magnetic Field X-ray Absorption and Magnetic Circular Dichroism Spectroscopy in the Mixed-Valent Compound YbAgCu_42012

    • Author(s)
      Toshiyuki Nakamura, Yasuhiro H. Matsuda, Jim-Long Her, Koichi Kindo, Shinji Michimura, Toshiya Inami, Masaichiro Mizumaki, Naomi Kawamura, Motohiro Suzuki, Bin Chen, Hiroto Ohta, Kazuyoshi Yoshimura, Akio Kotani
    • Journal Title

      J. Phys. Soc. Jpn

      Volume: Vol. 81 Issue: 11 Pages: 114702-114702

    • DOI

      10.1143/jpsj.81.114702

    • Related Report
      2013 Final Research Report 2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Suppression of f-electron itinerancy in CeRu_2Si_2 by a strong magnetic field2012

    • Author(s)
      Y. H. Matsuda, T. Nakamura, J. L. Her, S. Michimura, T. Inami, K. Kindo, and T. Ebihara
    • Journal Title

      Phys. Rev. B

      Volume: Vol. 86 Issue: 4 Pages: 1-4

    • DOI

      10.1103/physrevb.86.041109

    • Related Report
      2013 Final Research Report 2012 Annual Research Report
    • Peer Reviewed
  • [Presentation] (Pr_<1-y>Y_y)_<1-x>Ca_xCoO_3 における磁場誘起 Pr 価数変化と金属・絶縁体-スピン状態転移2014

    • Author(s)
      内藤智之、武田大輝、藤代博之、寺島拓、松田康弘、木原工、徳永将史、稲見俊哉
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学
    • Year and Date
      2014-03-27
    • Related Report
      2013 Final Research Report
  • [Presentation] パルス強磁場下軟X 線分校測定装置の開発2014

    • Author(s)
      稲見俊哉、松田康弘、岡本淳
    • Organizer
      物構研サイエンスフェスタ
    • Place of Presentation
      つくば
    • Year and Date
      2014-03-18
    • Related Report
      2013 Final Research Report
  • [Presentation] Valence State in Ce-based Heavy Fermion Compounds at High Magnetic Field2013

    • Author(s)
      Y. H. Matsuda, J. L. Her, S. Michimura, T. Inami, T. Ebihara, H. Amitsuka
    • Organizer
      International Conference on Strongly Correlated Electron Systems (SCES2013)
    • Place of Presentation
      Tokyo
    • Year and Date
      2013-08-07
    • Related Report
      2013 Final Research Report
  • [Presentation] CeRu_2Si_2 および CeRh_2Si_2 の強磁場下での Ce 価数2012

    • Author(s)
      松田康弘、中村俊幸、道村真司、稲見俊哉、金道浩一、海老原孝雄、網塚浩
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学
    • Year and Date
      2012-09-20
    • Related Report
      2013 Final Research Report
  • [Presentation] 重い電子系 α-YbAl_<1-x>Fe_xB_4 の強磁場磁化と価数2012

    • Author(s)
      寺島拓、松田康弘、中辻知、久我健太郎、曾根啓太、河村直己、水牧仁一朗、稲見俊哉
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学
    • Year and Date
      2012-09-20
    • Related Report
      2013 Final Research Report
  • [Presentation] Synchrotron X-ray spectroscopy study on the valence state in α-and β-YbAlB_4 at low temperatures and high magnetic fields2012

    • Author(s)
      Y. H. Matsuda, T. Nakamura, K. Kuga, S. Nakatsuji, S. Michimura, T. Inami, N. Kawamura, M. Mizumaki
    • Organizer
      The 19th International Conference on Magnetism
    • Place of Presentation
      Busan, Korea
    • Year and Date
      2012-07-12
    • Related Report
      2013 Final Research Report
  • [Presentation] Synchrotron X-ray Absorption Study on the Valence Fluctuation in Ce-based Heavy Fermion Compounds at High Magnetic Fields2012

    • Author(s)
      Y. H. Matsuda, T. Nakamura, J. L. Her, S. Michimura, T. Inami, T. Ebihara, H. Amitsuka
    • Organizer
      The 10 th International Conference on Research in High Magnetic Fields
    • Place of Presentation
      Wuhan, China
    • Year and Date
      2012-07-05
    • Related Report
      2013 Final Research Report
  • [Presentation] 強磁場 X 線分光実験のための小型パルスマグネット冷却方式の改善2012

    • Author(s)
      中村俊幸、松田康弘、稲見俊哉
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西大学
    • Year and Date
      2012-03-24
    • Related Report
      2013 Final Research Report
  • [Presentation] 強磁場X線分光実験のための小型パルスマグネット冷却方式の改善2012

    • Author(s)
      中村俊幸
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西大学(西宮)
    • Year and Date
      2012-03-24
    • Related Report
      2011 Annual Research Report
  • [Presentation] CeRu_2Si_2 の強磁場磁化と価数2011

    • Author(s)
      中村俊幸、松田康弘、金道浩一、道村真司、稲見俊哉、海老原孝雄
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-23
    • Related Report
      2013 Final Research Report
  • [Presentation] CeRu_2Si_2の強磁場磁化と価数2011

    • Author(s)
      中村俊幸
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-23
    • Related Report
      2011 Annual Research Report
  • [Presentation] 重い電子系 YbAgCu_4 の強磁場 XMCD2011

    • Author(s)
      松田康弘、中村俊幸、何金龍、金道浩一、道村真司、稲見俊哉、水牧仁一朗、河村直己、鈴木基寛、陳斌、太田寛人、吉村一良
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-22
    • Related Report
      2013 Final Research Report
  • [Presentation] YbAgCu_4 の磁場誘起価数転移2011

    • Author(s)
      中村俊幸、何金龍、松田康弘、金道浩一、稲見俊哉、道村真司、水牧仁一朗、河村直己、鈴木基寛、陳斌、太田寛人、吉村一良
    • Organizer
      日本物理学会第66回年次大会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-26
    • Related Report
      2013 Final Research Report
  • [Presentation] CeRu_2Si_2 の強磁場価数2011

    • Author(s)
      松田康弘、中村俊幸、道村真司、稲見俊哉、海老原孝雄
    • 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
      2013 Final Research Report
  • [Presentation] CeRu_2Si_2の強磁場価数2011

    • Author(s)
      松田康弘
    • Organizer
      日本物理学会第66回年次大会
    • Place of Presentation
      新潟
    • Year and Date
      2011-03-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] YbAgCu_4 の強磁場磁化と価数2010

    • Author(s)
      中村俊幸、何金龍、松田康弘、金道浩一、稲見俊哉、道村真司、水牧仁一朗、河村直己、鈴木基寛、陳斌、太田寛人、吉村一良
    • Organizer
      日本物理学会2010年秋季大会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2013 Final Research Report
  • [Presentation] Valence State in Ce-based Heavy Fermion Compounds at High Magnetic Field

    • Author(s)
      Y. H. Matsuda
    • Organizer
      International Conference on Strongly Correlated Electron Systems (SCES2013)
    • Place of Presentation
      東京大学
    • Related Report
      2013 Annual Research Report
  • [Presentation] (Pr1-yYy)1-xCaxCoO3における磁場誘起Pr価数変化と金属・絶縁体-スピン状態転移

    • Author(s)
      内藤 智之
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大湘南キャンパス
    • Related Report
      2013 Annual Research Report
  • [Presentation] パルス強磁場下軟X線分光測定装置の開発

    • Author(s)
      稲見俊哉
    • Organizer
      物構研サイエンスフェスタ
    • Place of Presentation
      つくば国際会議場
    • Related Report
      2013 Annual Research Report
  • [Presentation] Synchrotron X-ray Absorption Study on the Valence Fluctuation in Ce-based Heavy Fermion Compounds at High Magnetic Fields

    • Author(s)
      Y. H. Matsuda
    • Organizer
      The 10th International Conference on Research in High Magnetic Fields
    • Place of Presentation
      Wuhan, China
    • Related Report
      2012 Annual Research Report
  • [Presentation] Synchrotron X-ray spectroscopy study on the valence state in α- and β-YbAlB4 at low temperatures and high magnetic fields

    • Author(s)
      Y. H. Matsuda
    • Organizer
      The 19th International Conference (ICM) on Magnetism with Strongly Correlated Electron Systems (SCES)
    • Place of Presentation
      Busan, Korea
    • Related Report
      2012 Annual Research Report
  • [Presentation] CeRu2Si2およびCeRh2Si2の強磁場下でのCe価数

    • Author(s)
      松田康弘
    • Organizer
      日本物理学会2012年秋季大会
    • Place of Presentation
      横浜国立大学
    • Related Report
      2012 Annual Research Report
  • [Remarks]

    • URL

      http://www.issp.u-tokyo.ac.jp/maincontents/highlight/2011/ymatsuda1_en.html

    • Related Report
      2013 Final Research Report
  • [Remarks] ISSP ActivityReport 2011

    • URL

      http://www.issp.u-tokyo.ac.jp/maincontents/highlight/2011/ymatsuda1_en.html

    • Related Report
      2012 Annual Research Report

URL: 

Published: 2010-08-23   Modified: 2020-05-15  

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