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High transition temperature in antiferromagnetic Cerium Kondo semiconductor

Research Project

Project/Area Number 15K05180
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Condensed matter physics II
Research InstitutionToyama Prefectural University

Principal Investigator

MURO YUJI  富山県立大学, 工学部, 准教授 (50385530)

Research Collaborator FUKUHARA Tadashi  富山県立大学, 工学部, 教授
KUWAI Tomohiko  富山大学, 理学部, 教授
TAKABATAKE Toshiro  広島大学, 大学院先端物質科学研究科, 教授
UMEO Kazunori  広島大学, 自然科学研究支援開発センター, 准教授
HAYASHI Kyosuke  広島大学, 大学院先端物質科学研究科, 院生
ADROJA Devashibhai  ラザフォード・アップルトン研究所, ISIS施設, 上級研究員
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords磁性 / 強相関電子系 / セリウム化合物 / 近藤半導体 / 反強磁性秩序 / 異常反強磁性秩序 / 元素置換効果 / 異方的近藤効果 / 局所反転対称性の欠如 / 新物質開発 / 異方的c-f混成
Outline of Final Research Achievements

In order to clarify the origin of unusually high transition temperature 27 K in an antiferromagnetic Kondo semiconductor CeRu2Al10, we have investigated the correlation between the concentration of conduction electrons and antiferromagnetic order by substituting Si and Zn for Al atom. With decreasing electron concentration, the Kondo effect is enhanced. On the other hand, the antiferromagnetic transition temperature and magnitude of hybridization gap show maximum at pure CeRu2Al10. Because the magnetic property of CeRu2Al10 depends on the average electron number irrespective of subustitution elements, we have proposed that the anisotropic c-f hybridization in CeRu2Al10 should be caused from the complex conduction band constituted by the hybridization between Ru 4d and Al 3p electrons.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (36 results)

All 2018 2017 2016 2015 Other

All Int'l Joint Research (5 results) Journal Article (16 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 16 results,  Open Access: 3 results,  Acknowledgement Compliant: 6 results) Presentation (15 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] ラザフォード・アップルトン研究所/ダラム大学(英国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] ヨハネスブルグ大学(南アフリカ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] ラザフォード・アップルトン研究所/ダラム大学(英国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] ラザフォード・アップルトン研究所(英国)

    • Related Report
      2015 Research-status Report
  • [Int'l Joint Research] ケルン大学(ドイツ)

    • Related Report
      2015 Research-status Report
  • [Journal Article] La Substitution and Pressure Studies on CeCoSi: A Possible Antiferroquadrupolar Ordering Induced by Pressure2018

    • Author(s)
      Tanida Hiroshi、Muro Yuji、Matsumura Takeshi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 87 Issue: 2 Pages: 023705-023705

    • DOI

      10.7566/jpsj.87.023705

    • NAID

      210000134688

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Spin-Canted Antiferromagnetic Ground State in CeRu2Al102018

    • Author(s)
      Dean Philip、Muro Yuji、Takabatake Toshiro、Hatton Peter D.
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 87 Issue: 1 Pages: 013706-013706

    • DOI

      10.7566/jpsj.87.013706

    • NAID

      210000134656

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Anisotropic dependence of the magnetic transition on uniaxial pressure in the Kondo semiconductors CeT2Al10 (T = Ru and Os)2017

    • Author(s)
      K. Hayashi, K. Umeo, T. Takeuchi, J. Kawabata, Y. Muro, T. Takabatake
    • Journal Title

      Phys. Rev. B

      Volume: 96 Issue: 24

    • DOI

      10.1103/physrevb.96.245130

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Uniaxial pressure effects on the unusual antiferromagnetic transition in the Kondo semiconductor CeOs2Al102017

    • Author(s)
      K. Hayashi, K. Umeo, Y. Yamada, J. Kawabata, Y. Muro, and T. Takabatake
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 807 Issue: 2 Pages: 022002-022002

    • DOI

      10.1088/1742-6596/807/2/022002

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dilution effects on the antiferromagnetic Kondo semiconductor CeOs2Al102017

    • Author(s)
      Y. Okada, J. Kawabata, Y. Yamada, Y. Muro, and T. Takabatake
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 807 Pages: 022003-022003

    • DOI

      10.1088/1742-6596/807/2/022003

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Sb-NMR/NQR studies of heavy fermion system YbRhSb2017

    • Author(s)
      Yasuki Kishimoto, Yosiki Awai, Hisashi Kotegawa, Hideki Tou, Yuji Muro, Koji Nakamura, Masafumi Sera, and Toshiro Takabatake
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 807 Pages: 012014-012014

    • DOI

      10.1088/1742-6596/807/1/012014

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Doping effects on the hybridization gap and antiferromagnetic order in the Kondo semiconductor CeOs2Al10 studied by break-junction experiments2017

    • Author(s)
      J. Kawabata, T. Ekino, Y. Yamada, Y. Okada, A. Sugimoto, Y. Muro, T. Takabatake
    • Journal Title

      Phys. Rev. B 95

      Volume: 95 Issue: 3

    • DOI

      10.1103/physrevb.95.035144

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Interplay between hybridization gaps and antiferromagnetic gap in the hole-doped Kondo semiconductor Ce(Os1-yRey)2Al102017

    • Author(s)
      J. Kawabata, T. Ekino, Y. Yamada, A.Sugimoto, Y. Muro, T. Takabatake
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Uniaxial pressure effects on the unusual antiferromagnetic transition in the Kondo semiconductor CeOs2Al102017

    • Author(s)
      K. Hayashi, K. Umeo, Y. Yamada, J. Kawabata, Y. Muro, T. Takabatake
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Dilution effects on the antiferromagnetic Kondo semiconductor CeOs2Al102017

    • Author(s)
      Y. Okada, J. Kawabata, Y. Yamada, Y. Muro, T. Takabatake
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Sb-NMR/NQR studies of heavy fermion system YbRhSb2017

    • Author(s)
      Y. Kishimoto, Y. Awai, H. Kotegawa, H. Tou, Y. Muro, K. Nakamura, M. Sera, T. Takabatake
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard X-rays2016

    • Author(s)
      M. Sundermann, F. Strigari, T. Willers, J. Weinen, Y. F. Liao, K. -D. Tsuei, N. Hiraoka, H. Ishii, H. Yamaoka, J. Mizuki, Y. Zekko, E. D. Bauer, J. L. Sarrao, J. D. Thompson, P. Lejay, Y. Muro, K. Yutani, T. Takabatake, A. Tanaka, N. Hollmann, L. H. Tjeng, A. Severing
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena

      Volume: 209 Pages: 1-8

    • DOI

      10.1016/j.elspec.2016.02.002

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of Si substitution on the antiferromagnetic ordering in the Kondo semiconductor CeRu2Al102016

    • Author(s)
      K. Hayashi, Y. Muro, T. Fukuhara, J. Kawabata, T. Kuwai, T. Takabatake
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 85 Issue: 3 Pages: 034714-034714

    • DOI

      10.7566/jpsj.85.034714

    • NAID

      210000133873

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Hybridization gaps and antiferromagnetic gap in the Kondo semiconductors CeT2Al10 (T=Fe and Os) observed by break-junction tunneling spectroscopy2015

    • Author(s)
      . Kawabata, T. Ekino, Y. Yamada, Y. Sakai, A. Sugimoto, Y. Muro, T. Takabatake
    • Journal Title

      Physical Review B

      Volume: 92 Issue: 20

    • DOI

      10.1103/physrevb.92.201113

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] Contrasting effect of La substitution on the magnetic moment direction in the Kondo semiconductor CeT2Al10 (T = Ru, Os)2015

    • Author(s)
      D. T. Adroja, A. D. Hillier, C. Ritter, A. Bhattacharyya, D. D. Khalyavin, A. M. Strydom,P. Peratheepan, B. Fak, M. M. Koza, J. Kawabata, Y. Yamada, Y. Okada, Y. Muro,T. Takabatake, J. W. Taylor
    • Journal Title

      Physical Review B

      Volume: 92 Issue: 9

    • DOI

      10.1103/physrevb.92.094425

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Anisotropic Chemical Pressure Effect on the Antiferromagnetic Kondo Semiconductor Ce(Ru1-xFex)2Al102015

    • Author(s)
      K. Hayashi, Y. Muro, T. Fukuhara, T. Kuwai, J. Kawabata, T. Takabatake, M. Hagihara, K. Motoya
    • Journal Title

      Physics Procedia

      Volume: 75 Pages: 121-126

    • DOI

      10.1016/j.phpro.2015.12.017

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Ce希薄系Ce-Rh-Al三元化合物の物質探索2018

    • Author(s)
      室裕司,青木雄平,谷田博司, 福原忠
    • Organizer
      日本物理学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 一軸圧力によるCeT2Al10(T=Ru, Os)のTNの異方的変化2018

    • Author(s)
      竹内崇志,林慶介,梅尾和則,室裕司,高畠敏郎
    • Organizer
      日本物理学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 近藤半導体CeT2Al10(T=Ru,Os)の一軸圧下における反強磁性転移の格子ひずみ依存性2017

    • Author(s)
      林慶介,竹内崇志,川端丈,梅尾和則,室裕司,高畠敏郎
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2017-03-18
    • Related Report
      2016 Research-status Report
  • [Presentation] 近藤半導体CeOs2Al10の三段のギャップに対する4f正孔及び5d正孔/電子ドープの効果2017

    • Author(s)
      川端;丈,浴野稔一,岡田泰洋,山田義大,杉本暁,室裕司,高畠敏郎
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2017-03-18
    • Related Report
      2016 Research-status Report
  • [Presentation] α-CeNiSb3単結晶の磁性と伝導2017

    • Author(s)
      神谷洋平,福原忠,室裕司,桑井智彦,増渕伸一
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2017-03-18
    • Related Report
      2016 Research-status Report
  • [Presentation] 近藤半導体CeT2Al10(T = Ru, Os)の特異な反強磁性秩序に対する一軸圧力効果2017

    • Author(s)
      林慶介,竹内崇志,川端丈,梅尾和則,室裕司,高畠敏郎
    • Organizer
      日本物理学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Single crystal study for a ferromagnetic Kondo compound alpha-CeNiSb32017

    • Author(s)
      Y. Muro, Y. Kamiya, T. Fukuhara, T. Kuwai
    • Organizer
      J-Physics2017: International Workshop on Multipole Physics and Related Phenomena,
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3p-hole doping effect on the unusual antiferromagnetic transition in the Kondo semiconductor CeRu2Al102017

    • Author(s)
      Y. Muro, T. Fukuhara, T. Kuwai, K. Hayashi, T. Takabatake
    • Organizer
      International conference on strongly correlated electron systems, SCES2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 反強磁性近藤半導体CeRu2Al10のZn置換効果2016

    • Author(s)
      室裕司,蜂矢健人,福原忠,桑井智彦
    • Organizer
      日本物理学会
    • Place of Presentation
      金沢大学
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 近藤半導体CeT2Al10(T = Ru, Os, Fe)の特異な反強磁性秩序に対する一軸圧力効果2016

    • Author(s)
      竹内崇志,林慶介,川端丈,梅尾和則,高畠敏郎,室裕司
    • Organizer
      日本物理学会
    • Place of Presentation
      金沢大学
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 反強磁性近藤半導体CeT2Al10(T = Ru, Os)のc-f混成および擬ギャップに対する一軸圧力効果2016

    • Author(s)
      林慶介,竹内崇志,川端丈,梅尾和則,室裕司,高畠敏郎
    • Organizer
      日本物理学会
    • Place of Presentation
      金沢大学
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 反強磁性近藤半導体CeOs2Al10の三段ギャップ構造に対するLa希釈効果2016

    • Author(s)
      川端丈,浴野稔一,岡田泰洋,山田義大,杉本暁,室裕司,高畠敏郎
    • Organizer
      日本物理学会
    • Place of Presentation
      金沢大学
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] Effects of Si and Zn substitution on CeRu2Al102016

    • Author(s)
      室 裕司
    • Organizer
      研究会「反強磁性近藤半導体CeT2Al10の研究の進展」
    • Place of Presentation
      広島大学
    • Year and Date
      2016-07-02
    • Related Report
      2016 Research-status Report
  • [Presentation] Fragile Antiferromagnetism in a new Shastry-Sutherland Lattice Compound Yb2Ru3Ga102015

    • Author(s)
      Yuji Muro
    • Organizer
      The 20th International Conference on Magnetism ICM2015
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2015-07-08
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Anisotropic Chemical Pressure Effect on the Antiferromagnetic Kondo Semiconductor Ce(Ru1-xFex)2Al102015

    • Author(s)
      Yuji Muro
    • Organizer
      The 20th International Conference on Magnetism ICM2015
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2015-07-08
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2022-06-14  

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