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Effect of valence fluctuation in heavy fermion superconductors under pressure

Research Project

Project/Area Number 23540419
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Condensed matter physics II
Research InstitutionUniversity of the Ryukyus

Principal Investigator

ASO Naofumi  琉球大学, 理学部, 准教授 (40313118)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords重い電子 / 超伝導 / 価数揺らぎ / 量子臨界点 / 低温物性 / 圧力磁化 / 中性子散乱 / 圧力下磁化 / 中性子
Research Abstract

In this investigation, we found new information of the relationship between superconductivity and antiferromagnetism in vicinity of quantum critical point by means of the physical properties measurements under pressure of a single-crystalline CeIrIn5, in which it has been pointed out that valence fluctuation takes place near the quantum criticality point by theory,
Next, we focus on a pressure-induced antiferromagnet YbCo2Zn20 with the smallest quantum critical pressure in Yb-based heavy fermion compounds. We succeeded in the single-crystalline doped YbCo2Zn20 and found new information of its pressure effect.

Report

(4 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Research-status Report
  • 2011 Research-status Report
  • Research Products

    (42 results)

All 2014 2013 2012 2011

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (32 results)

  • [Journal Article] Thermoelectric power in single-crystalline CeRhSi32013

    • Author(s)
      HA. Tanaka, N. Aso, M. Hedo, T. Nakama, Y. Takaesu, H. Iida, N. Kimura, H. Aoki
    • Journal Title

      Journal of the Korean Physical Society

      Volume: 62 Issue: 12 Pages: 2016-2018

    • DOI

      10.3938/jkps.62.2016

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Neutron Diffraction in the Pressure-Induced Superconducting Antiferromagnet CeIrSi32012

    • Author(s)
      N Aso, M Takahashi, H Yoshizawa, H Iida, N Kimura and H Aoki
    • Journal Title

      Journal of Physics : Conference Series

      Volume: Vol. 400 Issue: 2 Pages: 022003-022003

    • DOI

      10.1088/1742-6596/400/2/022003

    • Related Report
      2013 Final Research Report 2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Neutron scattering experiments and simulations near the magnetic percolation threshold of FexZn1- xF22012

    • Author(s)
      G. Alvarez
    • Journal Title

      Physical Review B

      Volume: 86 Issue: 2

    • DOI

      10.1103/physrevb.86.024416

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Uniaxial-Pressure Control of Magnetic Phase Transitions in a Frustrated Magnet CuFe1-xGaxO2 (x = 0, 0.018)2012

    • Author(s)
      Taro Nakajima
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 81 Issue: 9 Pages: 94710-94710

    • DOI

      10.1143/jpsj.81.094710

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Uniaxial-stress enhancement of spin-driven ferroelectric polarization in a multiferroic CuFe1-xGaxO22012

    • Author(s)
      S.Mitsuda, et al
    • Journal Title

      J.Phys. : Conf.Ser.

      Volume: 340 Pages: 12062-12062

    • DOI

      10.1088/1742-6596/340/1/012062

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spin Density Wave Ordering in CeIrSi32011

    • Author(s)
      Naofumi Aso, Masaki Takahashi, Hideki Yoshizawa, Hiroki Iida, Noriaki Kimura, and Haruyoshi Aoki
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: Vol. 80

    • NAID

      210000109217

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Control of ferroelectric polarization via uniaxial pressure in the spin-lattice-coupled multiferroic CuFe1-xGaxO22011

    • Author(s)
      Taro Nakajima, et al
    • Journal Title

      Phys.Rev.B

      Volume: 83 Issue: 14 Pages: 144405-144405

    • DOI

      10.1103/physrevb.85.144405

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Magnetic properties and magnetic structures of Sr3-xCaxRu2O72011

    • Author(s)
      Yoshiyuki Yoshida, et al
    • Journal Title

      Journal of Physics and Chemistry of Solids

      Volume: 72 Issue: 5 Pages: 559-561

    • DOI

      10.1016/j.jpcs.2010.10.024

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dynamical Properties on the Protonic Conductor K3H(SeO4)22011

    • Author(s)
      Fumihito Shikanai, et al
    • Journal Title

      Ferroelectrics

      Volume: 416 Issue: 1 Pages: 101-107

    • DOI

      10.1080/00150193.2011.577715

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spin Density Wave Ordering in CeIrSi_32011

    • Author(s)
      N.Aso, M.Takahashi, et al
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 80 Issue: 9 Pages: 095004-095004

    • DOI

      10.1143/jpsj.80.095004

    • Related Report
      2011 Research-status Report
    • Peer Reviewed
  • [Presentation] YbCo2Zn20の中性子散乱2014

    • Author(s)
      阿曽尚文, 松林和幸, 上床美也, 吉沢英樹
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学湘南キャンパス
    • Year and Date
      2014-03-28
    • Related Report
      2013 Final Research Report
  • [Presentation] 空間反転対称性のない超伝導体 CeRhSi3 の中性子散乱2014

    • Author(s)
      阿曽尚文
    • Organizer
      物性研究所短期研究会「海外施設を舞台とした中性子散乱共同利用研究」
    • Place of Presentation
      東京大学物性研究所(千葉県柏市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] YbCo2Zn20の中性子散乱2014

    • Author(s)
      阿曽尚文 他
    • Organizer
      日本物理学会第69回年次大会
    • Place of Presentation
      東海大学湘南キャンパス(神奈川県平塚市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Physical properties under pressure in a heavy fermion superconductor CeIrIn52013

    • Author(s)
      N. Aso, Y. Tamaki, Y. Takaesu, K. Uchima, M. Hedo, T. Nakama, K. Matsubayashi, Y. Uwatoko, K. Deguchi, N. K. Sato
    • Organizer
      The international conference on strongly correlated electron systems (SCES 2013)
    • Place of Presentation
      東京大学伊藤国際学術研究センター
    • Year and Date
      2013-08-06
    • Related Report
      2013 Final Research Report
  • [Presentation] Neutron scattering studies in non-centrosymmetric superconductors CeTSi3 (T=Rh, Ir)2013

    • Author(s)
      Naofumi Aso
    • Organizer
      The 12th Korea-Japan Meeting on Neutron Science
    • Place of Presentation
      琉球大学
    • Year and Date
      2013-02-04
    • Related Report
      2013 Final Research Report
  • [Presentation] Single crystal neutron diffraction study of high neutron absorbing compound EuGa42013

    • Author(s)
      T. Kawasaki, K. Kaneko, N. Aso 他
    • Organizer
      第12 回アジア太平洋物理会議(APPC12)
    • Place of Presentation
      幕張メッセ国際会議場(千葉県千葉市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Physical properties under pressure in a heavy fermion superconductor CeIrIn52013

    • Author(s)
      Naofumi Aso 他
    • Organizer
      The International Conference on Strongly Correlated Electron Systems (SCES 2013)
    • Place of Presentation
      東京大学伊藤国際学術研究センター(東京都文京区)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Magnetic excitations in the normal state of the non-centrosymmetric superconductor CeRhSi32013

    • Author(s)
      H. Yoshizawa, N. Aso 他
    • Organizer
      第8回先進原子力科学技術に関する連携重点研究討論会および各成果報告会
    • Place of Presentation
      久慈サンピア日立(茨城県日立市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] 単結晶中性子回折法による高い中性子吸収を示す EuGa4 の磁気構造解析2013

    • Author(s)
      川崎卓郎,金子耕士,阿曽尚文 他
    • Organizer
      日本中性子科学会第13回年会
    • Place of Presentation
      ちば県民プラザ(千葉県柏市)
    • Related Report
      2013 Annual Research Report
  • [Presentation] Neutron scattering studies in non-centrosymmetric superconductors CeTSi3 (T=Rh,Ir)2013

    • Author(s)
      Naofumi Aso
    • Organizer
      The 12th Korea-Japan Meeting on Neutron Science - Recent Developments and Achievements in Neutron Science -
    • Place of Presentation
      琉球大学研究者交流施設・50周年記念館
    • Related Report
      2012 Research-status Report
  • [Presentation] 単結晶CeRhSi3の圧力下熱電能2013

    • Author(s)
      阿曽尚文
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学東広島キャンパス
    • Related Report
      2012 Research-status Report
  • [Presentation] 擬カゴメ格子重い電子系YbAgGeのフラストレート磁気構造2013

    • Author(s)
      梅尾和則
    • Organizer
      日本物理学会第68回年次大会
    • Place of Presentation
      広島大学東広島キャンパス
    • Related Report
      2012 Research-status Report
  • [Presentation] Physical properties under pressure in a heavy fermion superconductor CeIrIn52012

    • Author(s)
      Naofumi Aso, Y. Tamaki, Y. Takaesu, M. Hedo, T. Nakama, K. Uchima, K. Matsubayashi, Y. Uwatoko, Y. Ishikawa, K. Deguchi, N. K. Sato
    • Organizer
      The 19th International Conference on Magnetism (ICM 2012)
    • Place of Presentation
      Bexco, Busan, South Korea
    • Year and Date
      2012-07-09
    • Related Report
      2013 Final Research Report 2012 Research-status Report
  • [Presentation] 空間反転対称性を持たない超伝導体CeIrSi3の非整合磁気構造2012

    • Author(s)
      阿曽尚文
    • Organizer
      東京大学物性研究所ISSPワークショップ「3軸分光器検討会」
    • Place of Presentation
      東京大学物性研究所(柏キャンパス)
    • Related Report
      2012 Research-status Report
  • [Presentation] Thermoelectric power in a single-crystalline CeRhSi32012

    • Author(s)
      Hidekazu Tanaka
    • Organizer
      The 19th International Conference on Magnetism (ICM 2012)
    • Place of Presentation
      Bexco, Busan, South Korea
    • Related Report
      2012 Research-status Report
  • [Presentation] 単結晶CeIrIn5の圧力中の磁性と輸送特性2012

    • Author(s)
      高江洲義尚,他
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学
    • Related Report
      2011 Research-status Report
  • [Presentation] 空間反転対称性の破れた重い電子系超伝導体CeIrSi3のX線回折2012

    • Author(s)
      阿曽尚文,他
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西学院大学
    • Related Report
      2011 Research-status Report
  • [Presentation] f電子系の高圧力下における中性子散乱2011

    • Author(s)
      阿曽尚文, 藤原哲也, 上床美也
    • Organizer
      第52回高圧討論会
    • Place of Presentation
      沖縄キリスト教学院
    • Year and Date
      2011-11-10
    • Related Report
      2013 Final Research Report 2011 Research-status Report
  • [Presentation] Electrical Resistivity of a Heavy Fermion Superconductor CeIrIn5 under High Pressure up to 8.0 Gpa2011

    • Author(s)
      Y. Takaesu, N. Aso, Y. Tamaki, M. Hedo, T. Nakama, K. Uchima, K. Matsubayashi, Y. Uwatoko, Y. Ishikawa, K. Deguchi, N. K. Sato
    • Organizer
      23rd AIRAPT International Conference on High Pressure Science & Technology (AIRAPT-23)
    • Place of Presentation
      Bhabha Atomic Research Centre, Mumbai, India
    • Year and Date
      2011-09-29
    • Related Report
      2013 Final Research Report
  • [Presentation] 単結晶CeIrIn5の圧力下における磁化と輸送特性2011

    • Author(s)
      玉置優樹, 阿曽尚文, 高江洲義尚, 辺土正人, 仲間隆男, 松林和幸, 上床美也, 出口和彦, 佐藤憲昭
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-24
    • Related Report
      2013 Final Research Report
  • [Presentation] 空間反転対称性のない重い電子系超伝導体CeIrSi3の磁気構造2011

    • Author(s)
      阿曽尚文
    • Organizer
      新学術領域研究「重い電子系の形成と秩序化」第3回研究会
    • Place of Presentation
      東京大学物性研究所
    • Related Report
      2011 Research-status Report
  • [Presentation] Neutron Diffraction in the Pressure-Induced Superconducting Antiferromagnet CeIrSi32011

    • Author(s)
      N. Aso et al.
    • Organizer
      The 26th International Conference on Low Temperature Physics (LT26)
    • Place of Presentation
      Beijing, China
    • Related Report
      2011 Research-status Report
  • [Presentation] Itinerant Ferromagnetism and Superconductivity in Uranium Compound UCoGe2011

    • Author(s)
      K. Deguchi et al.
    • Organizer
      International Conference on Strongly Correlated Electron Systems 2011 (SCES'11)
    • Place of Presentation
      富山大University of Cambridge, Cambridge, United Kingdom学五福キャンパス
    • Related Report
      2011 Research-status Report
  • [Presentation] 空間反転対称性の破れた重い電子系超伝導体CeIrSi3の結晶構造と磁気構造2011

    • Author(s)
      阿曽尚文,他
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学五福キャンパス
    • Related Report
      2011 Research-status Report
  • [Presentation] 単結晶CeIrIn5の圧力下における磁化と輸送特性2011

    • Author(s)
      玉置優樹,他
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学五福キャンパス
    • Related Report
      2011 Research-status Report
  • [Presentation] 単結晶CeIrSi3の圧力下輸送特性2011

    • Author(s)
      高江洲義尚,他
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学五福キャンパス
    • Related Report
      2011 Research-status Report
  • [Presentation] 強磁性超伝導体UCoGeの遍歴強磁性の研究2011

    • Author(s)
      出口和彦,他
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学五福キャンパス
    • Related Report
      2011 Research-status Report
  • [Presentation] ZrZn2の量子相転移点近傍における新奇秩序相2011

    • Author(s)
      壁谷典幸,他
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学五福キャンパス
    • Related Report
      2011 Research-status Report
  • [Presentation] Electrical Resistivity of a Heavy Fermion Superconductor CeIrIn5 under High Pressure up to 8.0 GPa2011

    • Author(s)
      Y. Takaesu et al.
    • Organizer
      23rd AIRAPT International Conference on High Pressure Science & Technology (AIRAPT-23)
    • Place of Presentation
      Bhabha Atomic Research Centre, Mumbai, India
    • Related Report
      2011 Research-status Report
  • [Presentation] 単結晶CeIrIn5の圧力下における輸送特性2011

    • Author(s)
      玉置優樹,他
    • Organizer
      第52回高圧討論会
    • Place of Presentation
      沖縄キリスト教学院
    • Related Report
      2011 Research-status Report
  • [Presentation] CeIrSi3の圧力下における輸送特性2011

    • Author(s)
      高江洲義尚,他
    • Organizer
      第52回高圧討論会
    • Place of Presentation
      沖縄キリスト教学院
    • Related Report
      2011 Research-status Report
  • [Presentation] 反転対称性をもたない重い電子系超伝導体CeTSi3(T=Rh,Ir)の中性子回折2011

    • Author(s)
      阿曽尚文
    • Organizer
      第11回琉球大学物性研究会
    • Place of Presentation
      琉球大学理学部
    • Related Report
      2011 Research-status Report

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Published: 2011-08-05   Modified: 2020-05-15  

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