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Tetracritical point between antiferromagnetism and superconductivity in heavy-fermion systems

Research Project

Project/Area Number 20740195
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Condensed matter physics II
Research InstitutionOsaka University

Principal Investigator

YASHIMA Mitsuharu  Osaka University, 大学院・基礎工学研究科, 助教 (10397771)

Project Period (FY) 2008 – 2010
Project Status Completed (Fiscal Year 2010)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords強相関系 / 超伝導 / 重い電子系 / 量子臨界点 / 圧力効果 / NMR/NQR / 磁性 / NMR / NQR
Research Abstract

We investigated the superconducting nature in the heavy-fermion systems, using the microscopic NMR/NQR method. We confirmed the strong coupling between the superconducting and antiferromagnetic order parameter around the tetracritical point, suggesting the close relationship between the superconductivity and the antiferromagnetic interactions. The present results give us a lot of important knowledge to theoretically solve the superconducting mechanism in the heavy ?fermion systems.

Report

(4 results)
  • 2010 Annual Research Report   Final Research Report ( PDF )
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (59 results)

All 2011 2010 2009 2008 Other

All Journal Article (20 results) (of which Peer Reviewed: 20 results) Presentation (35 results) Remarks (4 results)

  • [Journal Article] Spin Susceptibility of Noncentrosymmetric Heavy-Fermion Superconductor CeIrSi3 under Pressure : ^<29>Si Knight-Shift Study on Single Crystal2010

    • Author(s)
      H.Mukuda, T.Ohara, Y.Kitaoka, R.Settai, Y.Onuki, K.M.Itoh E.E.Haller
    • Journal Title

      Phys.Rev.Lett. 104

      Pages: 17002-17002

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Origin of Tc Enhancement Induced by Doping Yttrium and Hydrogen into LaFeAsO-Based Superconductors : ^<57>Fe, ^<75>As, ^<139>La, and 1H-NMR Studies2010

    • Author(s)
      H.Yamashita, H.Mukuda, M.Yashima, S.Furukawa, Y.Kitaoka, K.Miyazawa, P.M.Shirage, H.Eisaki, A.Iyo
    • Journal Title

      J.Phys.Soc.Jpn. 79

      Pages: 103703-103703

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] NMR study of Fe-oxypnictide superconductors RE-Fe-As-O (RE=Nd,Pr,La_<0.7>Y_<0.3>)2010

    • Author(s)
      Hiroki Yamashita, Mitsuharu Yashima, et al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS

      Volume: 470

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Superconducting state of iron arsenide Ba_<1-x>K_xFe_2As_2 : ^<57>Fe and ^<75>As NMR studies2010

    • Author(s)
      Hideaki Nishimura, Mitsuharu Yashima, et al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS

      Volume: 470

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ^<115>In-NQR study of the novel superconductivity in the heavy-fermion compounds CeIr(In_<1-x>Cd_x)_52010

    • Author(s)
      Mitsuharu Yashima, et al.
    • Journal Title

      PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS

      Volume: 470

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coherence Effect of Sign-Reversing s(+/-)-Wave Cooper Pair State in Heavily Overdoped LaFeAsO-based Superconductor : ^<75>As-Nuclear Quadrupole Resonance2010

    • Author(s)
      Hidekazu Mukuda, Mitsuharu Yashima, et al.
    • Journal Title

      JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN

      Volume: 79

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Origin of T-c Enhancement Induced by Doping Yttrium and Hydrogen into LaFeAsO-Based Superconductors : ^<57>Fe-, ^<75>As-, ^<139>La-, and ^1H-NMR Studies2010

    • Author(s)
      Hiroki Yamashita, Mitsuharu Yashima, et al.
    • Journal Title

      JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN

      Volume: 79

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel superconducting phases in copper oxides and iron-oxypnictides : NMR studies2010

    • Author(s)
      Yoshio Kitaoka, Mitsuharu Yashima, et al.
    • Journal Title

      Journal of Physics and Chemistry of Solids

      Volume: (In Press)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin Susceptibility of Noncentrosymmetric Heavy-Fermion Superconductor CeIrSi_3 under Pressure : Si-29 Knight-Shift Study on Single Crystal2010

    • Author(s)
      Hidekazu Mukuda, et al.
    • Journal Title

      Physical Review Letters 104

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phase diagram for antiferromagnetism and superconductivity in the pressurs-induced heayy-fermion supercnnductor Ce_2RhIn_8 probed by ^<115>In-NOR2010

    • Author(s)
      Mitsuharu Yashima, et al
    • Journal Title

      Physical Review B 80

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Strong coupling between antiferromagnetic and superconducting order parameters of CeRhIn_5 studied by ^<115>In-nuclear quadrupole resonance spectroscopy2009

    • Author(s)
      M.Yashima H.Mukuda, Y.Y.Kitaoka, H.Shishido, R.Settai, Y.Onuki
    • Journal Title

      Phys.Rev.B 79

      Pages: 214528-214528

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Strong Coupling Spin Singlet Superconductivity with Multiple Full Gaps in Hole-Doped Ba_<0.6>K_<0.4>Fe_2As_2 Probed by ^<57>Fe-NMR2009

    • Author(s)
      M.Yashima, H.Nishimura, H.Mukuda, Y.Kitaoka, K.Miyazawa, P.M.Shirage, K.Kihou, H.Kito, H.Eisaki, A.Iyo
    • Journal Title

      J.Phys.Soc.Jpn. 78

      Pages: 103702-103702

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Phase diagram for antiferromagnetism and superconductivity in the pressure-induced heavy-fermion superconductor Ce_2RhIn_8 probed by ^<115>In-NQR2009

    • Author(s)
      M.Yashima, S.Taniguchi, H.Miyazaki, H.Mukuda, Y.Kitaoka, H.Shishido, R.Settai Y.Onuki
    • Journal Title

      Phys.Rev.B 80

      Pages: 184503-184503

    • Related Report
      2010 Final Research Report
    • Peer Reviewed
  • [Journal Article] Strong-Coupling Spin-Singlet Superconductivity with Multiple Full Gaps in Hole-Doped Ba_<0.6>K_<0.4>Fe_2As_2 Probed by ^<57>Fe-NMR2009

    • Author(s)
      Mitsuharu Yashima, et al.
    • Journal Title

      Journal of the Physical Society of Japan 78

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Doping Dependence of Normal-State Properties in Iron-Based Oxypnictide Superconductor LaFeAsO_<1-y> Probed by ^<57>Fe-NMR and ^<75>As-NMR/NQR2009

    • Author(s)
      Hidekazu Mukuda, et al.
    • Journal Title

      Journal of the Physical Society of Japan 78

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Strong coupling between antiferromagnetic and superconducting order parameters of CeRhIn_5 studied by ^<115>In- nuclear quadrupole resonance spectroscopy2009

    • Author(s)
      Mitsuharu Yashima, et al.
    • Journal Title

      Physical Review B 79

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel superconducting characteristics and unusual normal-state properties in iron-based pnictide superconductors : (FeNMR)^<-57>Fe and (75)AsNQR/NMR studies in REFeAsO1-y (RE = La, Pr, Nd) and Ba_<0.6>K_<0.4>Fe_2As_22009

    • Author(s)
      Hidekazu Mukuda, et al.
    • Journal Title

      PHYSICA C 469

      Pages: 559-565

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic Field Evolution of a Novel Phase Transition in CeO_<s4>Sb_<12> : ^<121>Sb NMR Study2009

    • Author(s)
      Mamoru Yogi, et al.
    • Journal Title

      Journal of the Physical Society of Japan 78

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin Fluctuations and Unconventional Superconductivity in the Fe-Based Oxypnictide Superconductor LaFeAsO_<0.7> Probed by ^<57>Fe-NMR2009

    • Author(s)
      Hidekazu Mukuda, et.al.
    • Journal Title

      Journal of the Physical Society of Japan 78

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ^<75>As-NQR/NMR studies on oxygen-deficient iron-based oxypnictide superconductors LaFeAsO_<1-y>(y=0, 0.25, 0.4) and NdFeASO_<0.6>2008

    • Author(s)
      Hidekazu Mukuda, et.al.
    • Journal Title

      Journal of the Physical Society of Japan 77

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] 鉄系超伝導体Ba_<1-x>K_xFe_2As_2のFe-NMR2011

    • Author(s)
      八島光晴
    • Organizer
      日本物理学会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-28
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] La_<0.05>Y_<0.9>5FeAsO_<1-y>Hx(Tc=50K)におけるAs-NMR/NQR2011

    • Author(s)
      古川哲試、八島光晴, et al.
    • Organizer
      日本物理学会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-28
    • Related Report
      2010 Annual Research Report
  • [Presentation] ペロブスカイトブロック層をもつ鉄系超伝導体のNMR/NQR2011

    • Author(s)
      木内宏彰、八島光晴, et al.
    • Organizer
      日本物理学会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-26
    • Related Report
      2010 Annual Research Report
  • [Presentation] 鉄系超伝導体Ba_<0.6>K_<0.4>Fe_2As_2の圧力効果:Fe-NMRによる研究2011

    • Author(s)
      TSENDSUREN DULGUUN、八島光晴, et al.
    • Organizer
      日本物理学会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] LaFeAs(O,F)系のオーバードープ域における^<75>As-NQR II2011

    • Author(s)
      新田真理子、八島光晴, et al.
    • Organizer
      日本物理学会
    • Place of Presentation
      新潟大学
    • Year and Date
      2011-03-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] NMR/NQR Studies on Iron-pnictide Superconductors2011

    • Author(s)
      椋田秀和、八島光晴, et al.
    • Organizer
      International workshop on Novel Superconductors and Super Materials 2011 (NS22011)
    • Place of Presentation
      日本科学未来館
    • Year and Date
      2011-03-07
    • Related Report
      2010 Annual Research Report
  • [Presentation] Pressure Effects on Superconductivity of Optimally doped Ba_<0.6>K_<0.4>Fe_2As_2 Fe-NMR2011

    • Author(s)
      Dulguun Tsendsuren、八島光晴, et al.
    • Organizer
      International workshop on Novel Superconductors and Super Materials 2011 (NS22011)
    • Place of Presentation
      日本科学未来館
    • Year and Date
      2011-03-07
    • Related Report
      2010 Annual Research Report
  • [Presentation] ^<75>As-NMR/NQR Study of Iron-Based Superconductors with Perovskite-type Blocking Layer2011

    • Author(s)
      木内宏彰、八島光晴, et al.
    • Organizer
      International workshop on Novel Superconductors and Super Materials 2011 (NS22011)
    • Place of Presentation
      日本科学未来館
    • Year and Date
      2011-03-07
    • Related Report
      2010 Annual Research Report
  • [Presentation] NMR/NQRによるLa-Fe-As-O系の超伝導状態2010

    • Author(s)
      椋田秀和、八島光晴, et al.
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-24
    • Related Report
      2010 Annual Research Report
  • [Presentation] 重い電子系化合物CeRhIn_5とCe_2RhIn_8におけるIn-NQRによる研究2010

    • Author(s)
      八島光晴
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] 鉄砒素化合物Ba_<1-x>K_xFe_2As_2のFe-NMR2010

    • Author(s)
      西村英哲、八島光晴, et al.
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] LaFeAs(O,F)系のオーバードープ域における^<75>As-NQR2010

    • Author(s)
      新田真理子、八島光晴, et al.
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] LaFeAsO系におけるYまたはH置換効果:^<57>Fe&^<75>As-NMR2010

    • Author(s)
      古川哲試、八島光晴, et al.
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] 重い電子系超伝導体CeIr(In_<1-x>Cd_x)_5の^<115>In-NQRによる研究2010

    • Author(s)
      植松克吉、八島光晴, et al.
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] 重い電子系化合物CePtSi_2のNMRによる研究(常圧)2010

    • Author(s)
      畦森達也、八島光晴, et al.
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪府立大学
    • Year and Date
      2010-09-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] NMR study on heavy fermion compound CePtSi2 at ambient pressure2010

    • Author(s)
      八島光晴
    • Organizer
      Strongly Correlated Electron Systems (SCES2010)
    • Place of Presentation
      Santa Fe (USA)
    • Year and Date
      2010-07-01
    • Related Report
      2010 Final Research Report
  • [Presentation] NMR study on heavy fermion compound CePtSi_2 at ambient pressure2010

    • Author(s)
      八島光晴, et al.
    • Organizer
      Strongly Correlated Electron Systems (SCES 2010)
    • Place of Presentation
      Santa Fe (USA)
    • Year and Date
      2010-07-01
    • Related Report
      2010 Annual Research Report
  • [Presentation] NMR Study on iron-pnictide high-Tc Superconductors2010

    • Author(s)
      椋田秀和、八島光晴, et al.
    • Organizer
      International conference on Core Research and Engineering Science of Advanced Materials (GCOE)
    • Place of Presentation
      大阪大学
    • Year and Date
      2010-06-02
    • Related Report
      2010 Annual Research Report
  • [Presentation] Preessure-temperature phase diagram of superconductivity in heavy fermion compounds CeIr(In_<1-x>Cd_x)_5 studied by In-NQR measurements2010

    • Author(s)
      八島光晴
    • Organizer
      International conference on Core Research and Engineering Science of Advanced Materials (GCOE)
    • Place of Presentation
      大阪大学
    • Year and Date
      2010-05-31
    • Related Report
      2010 Annual Research Report 2010 Final Research Report
  • [Presentation] 鉄系超伝導体Ba_<1-x>K_xFe_2As_2における^<57>Fe-NMR2009

    • Author(s)
      八島光晴
    • Organizer
      TRIP第3回領域会議
    • Place of Presentation
      東京大学小柴ホール(東京都)
    • Year and Date
      2009-12-12
    • Related Report
      2009 Annual Research Report
  • [Presentation] In-NQRによるCe_2RhIn_8の圧カ-温度相図2009

    • Author(s)
      八島光晴
    • Organizer
      物性科学領域横断研究会-凝縮系科学の最前線
    • Place of Presentation
      東京大学武田ホール(東京都)
    • Year and Date
      2009-11-30
    • Related Report
      2009 Annual Research Report
  • [Presentation] 鉄系超伝導体La_<1-x>Y_x FeAsOyのNMRによる研究2009

    • Author(s)
      山下裕貴
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学黒髪キャンパス(熊本市)
    • Year and Date
      2009-09-27
    • Related Report
      2009 Annual Research Report
  • [Presentation] Ba_<1-x>K_xFe_2As_2のFe-NMRによる研究2009

    • Author(s)
      西村英哲
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学黒髪キャンパス(熊本市)
    • Year and Date
      2009-09-27
    • Related Report
      2009 Annual Research Report
  • [Presentation] Ba(Fe_<1-x>Co_x)_2As_2の^<57>Feおよび^<75>As-NMR2009

    • Author(s)
      田村伸克
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学黒髪キャンパス(熊本市)
    • Year and Date
      2009-09-27
    • Related Report
      2009 Annual Research Report
  • [Presentation] CeTx_4Sb_<12>のSb-NMR/NQRによる研究III2009

    • Author(s)
      與儀護
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学黒髪キャンパス(熊本市)
    • Year and Date
      2009-09-26
    • Related Report
      2009 Annual Research Report
  • [Presentation] NMR Study of Iron-oxypnictide Superconductors REFeAsO<1-y>(RE=La,Pr,Nd)2009

    • Author(s)
      Hiroki Yamashita
    • Organizer
      The 9th International Conference on Materials and Mechanisms of Superconductivity(M2S-IX)
    • Place of Presentation
      京王プラザホテル(東京都)
    • Year and Date
      2009-09-09
    • Related Report
      2009 Annual Research Report
  • [Presentation] ^<115>In-NQR Study of the Novel Superconductivity in the Heavy-Fermion Compounds CeIr(In_<1-x>Cd_x)_52009

    • Author(s)
      八島光晴
    • Organizer
      The 9th International Conference on Materials and Mechanisms of Superconductivity (M2S-IX)
    • Place of Presentation
      京王プラザホテル(東京都)
    • Year and Date
      2009-09-08
    • Related Report
      2010 Final Research Report
  • [Presentation] ^<115>In-NQR Study of the Novel Superconductivity in the Heavy-Fermion Compounds CeIr(In_<1-x>Cd_x)_52009

    • Author(s)
      Mitsuharu Yashima
    • Organizer
      The 9th International Conference on Materials and Mechanisms of Superconductivity(M2S-IX)
    • Place of Presentation
      京王プラザホテル(東京都)
    • Year and Date
      2009-09-08
    • Related Report
      2009 Annual Research Report
  • [Presentation] Novel Superconductivity in CeIr(In_<1-x>Cd_x)_5 Studied by In-NQR Measurements2009

    • Author(s)
      Mitsuharu Yashima
    • Organizer
      The 18th International Conference on Magnetism (ICM2009)
    • Place of Presentation
      Congress Center Karlsruhe (Karlsruhe, Germany)
    • Year and Date
      2009-07-30
    • Related Report
      2009 Annual Research Report
  • [Presentation] Pressure-Temperature Phase Diagram in Ce_2RhIn_8 Studied by In-NQR Measurements2009

    • Author(s)
      八島光晴
    • Organizer
      The 18th International Conference on Magnetism (ICM2009)
    • Place of Presentation
      Karlsruhe(Germany)
    • Year and Date
      2009-07-27
    • Related Report
      2010 Final Research Report
  • [Presentation] Novel Superconductivity in CeIr(In_<1-x>Cd_x)_5 Studied by In-NQR Measurements2009

    • Author(s)
      八島光晴
    • Organizer
      The 18th International Conference on Magnetism (ICM2009)
    • Place of Presentation
      Karlsruhe(Germany)
    • Year and Date
      2009-07-27
    • Related Report
      2010 Final Research Report
  • [Presentation] Pressure-Thmperature phase Diagram in Ce_2RhIn_8 Studied by In-NQR Measurements2009

    • Author(s)
      Mitsuharu Yashima
    • Organizer
      The 18th International Conference on Magnetism (ICM2009)
    • Place of Presentation
      Congress Center Karlsruhe (Karlsruhe, Germany)
    • Year and Date
      2009-07-27
    • Related Report
      2009 Annual Research Report
  • [Presentation] CeRhIn_5の磁気構造の圧力変化と超伝導の関係2008

    • Author(s)
      八島光晴
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-22
    • Related Report
      2010 Final Research Report 2008 Annual Research Report
  • [Presentation] REOFeAs系超伝導体におけるNMR/NQR2008

    • Author(s)
      寺崎伸幸, et.al.
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-22
    • Related Report
      2008 Annual Research Report
  • [Presentation] 空間反転対称性のない重い電子系超伝導体CeIrSi_3に却ける圧力下Si-NMR II2008

    • Author(s)
      小原崇, et.al.
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-21
    • Related Report
      2008 Annual Research Report
  • [Remarks] ホームページ等

    • URL

      http://www.kitaokalab.mp.es.osaka-u.ac.jp/index.html

    • Related Report
      2010 Final Research Report
  • [Remarks]

    • URL

      http://www.kitaokalab.mp.es.osaka-u.ac.jp/index.html

    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www.kitaokalab.mp.es.osaka-u.ac.jp/index.html

    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://www.kitaokalab.mp.es.osaka-u.ac.jp/index.html

    • Related Report
      2008 Annual Research Report

URL: 

Published: 2008-04-01   Modified: 2020-05-15  

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