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Construction of microscopic theory of new quantum critical phenomena in strongly-correlated electron systems

Research Project

Project/Area Number 15K05177
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Condensed matter physics II
Research InstitutionKyushu Institute of Technology

Principal Investigator

Watanabe Shinji  九州工業大学, 大学院工学研究院, 准教授 (40334346)

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: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords量子臨界現象 / 量子輸送現象 / 周期アンダーソン模型 / ホール効果 / SCR理論 / 熱膨張係数 / グリュナイゼンパラメータ / 比熱 / 磁気量子臨界点 / スピンゆらぎ / モードモード結合理論 / SCR理論 / 臨界価数ゆらぎ / 非フェルミ液体 / 重い電子系 / 強相関電子系 / ホール伝導度 / 電気伝導度 / 電気抵抗率 / 近藤領域 / 価数揺動領域 / ホール係数
Outline of Final Research Achievements

Exact formulas of diagonal conductivity and Hall conductivity are derived from the Kubo formula in hybridized two-orbital systems with arbitrary band dispersions. On the basis of the theoretical framework for the Fermi liquid based on these formulas, quantum transport phenomena in the periodic Anderson model are clarified. The theoretical framework of the magneto volume effect near the magnetic quantum critical point is constructed. On the basis of the self-consistent renormalization theory of spin fluctuations, the specific heat, the thermal-expansion coefficient, and Gruneisen parameter are formulated.

Report

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

    (26 results)

All 2018 2017 2016 2015 Other

All Journal Article (10 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 10 results,  Open Access: 3 results,  Acknowledgement Compliant: 5 results) Presentation (14 results) (of which Int'l Joint Research: 9 results,  Invited: 11 results) Remarks (2 results)

  • [Journal Article] Gruneisen Parameter and Thermal Expansion by the Self-Consistent Renormalization Theory of Spin Fluctuations2018

    • Author(s)
      S. Watanabe, Miyake
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 87 Issue: 3 Pages: 034712-034712

    • DOI

      10.7566/jpsj.87.034712

    • NAID

      40021491927

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of crystalline electronic field and onsite interorbital interaction in Yb-based quasicrystal and approximant crystal2018

    • Author(s)
      S. Watanabe and K. Miyake
    • Journal Title

      Journal of Physics: Condensed Matter

      Volume: 30 Issue: 18 Pages: 184001-184001

    • DOI

      10.1088/1361-648x/aab817

    • NAID

      120006604496

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coincidence of magnetic and valence quantum critical points in CeRhIn5 under pressure2017

    • Author(s)
      Z. Ren, G. W. Scheerer, D. Aoki, K. Miyake, S. Watanabe, D. Jaccard
    • Journal Title

      Phys. Rev. B

      Volume: 96 Issue: 18 Pages: 184524-184524

    • DOI

      10.1103/physrevb.96.184524

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Ubiquity of Unconventional Phenomena Associated with Critical Valence Fluctuations in Heavy Fermion Metals2017

    • Author(s)
      K. Miyake and S. Watanabe
    • Journal Title

      Philos. Mag.

      Volume: 97 Issue: 36 Pages: 3495-3516

    • DOI

      10.1080/14786435.2017.1314561

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] New Quantum Criticality Revealed under Pressure2017

    • Author(s)
      S. Watanabe and K. Miyake
    • Journal Title

      Jpn. J. Appl. Phys.

      Volume: 56 Issue: 5S3 Pages: 05FA01-05FA01

    • DOI

      10.7567/jjap.56.05fa01

    • NAID

      210000147791

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Lifetime-Broadening-Suppressed X-ray Absorption Spectrum of β-YbAlB4 Deduced from Yb 3d→2p Resonant X-ray Emission Spectroscopy2017

    • Author(s)
      N. Kawamura, N. Kanai, H. Hayashi, Y. H. Matsuda, M. Mizumaki, K. Kuga, S. Nakatsuji and S. Watanabe
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 86 Issue: 1 Pages: 014711-014711

    • DOI

      10.7566/jpsj.86.014711

    • NAID

      210000134233

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Origin of Quantum Criticality in Yb-Al-Au Approximant Crystal and Quasicrystal2016

    • Author(s)
      S. Watanabe and K. Miyake
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 85 Issue: 6 Pages: 063703-063703

    • DOI

      10.7566/jpsj.85.063703

    • NAID

      120006407334

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Basic Properties of Conductivity and Normal Hall Effect in the Periodic Anderson Model2016

    • Author(s)
      S. Watanabe and K. Miyake
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 85 Issue: 4 Pages: 044704-044704

    • DOI

      10.7566/jpsj.85.044704

    • NAID

      120006407325

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Quantum Criticality and Emergence of the T/B Scaling in Strongly Correlated Metals2016

    • Author(s)
      S. Watanabe and K. Miyake
    • Journal Title

      J. Mag. Mag. Mat.

      Volume: 400 Pages: 13-16

    • DOI

      10.1016/j.jmmm.2015.09.042

    • NAID

      120006407326

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Pressure-Induced Valence Crossover and Novel Metamagnetic Behavior near the Antiferromagnetic Quantum Phase Transition of YbNi3Ga92015

    • Author(s)
      K. Matsubayashi, T. Hirayama, T. Yamashita, S. Ohara, N. Kawamura, M. Mizumaki, N. Ishimatsu, S. Watanabe, K. Kitagawa, Y. Uwatoko
    • Journal Title

      Phys. Rev. Lett.

      Volume: 114 Issue: 8 Pages: 086401-086401

    • DOI

      10.1103/physrevlett.114.086401

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Quantum Criticality Universal to Yb-Based Quasicrystal and Periodic Crystal2017

    • Author(s)
      S. Watanabe
    • Organizer
      International Workshop on Multipole Physics and Related Phenomena (J-Physics 2017), Iwate, Japan
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Universality of Quantum Criticality in Yb-Based Heavy Fermions on Quasicrystal and Pressurized Approximant Crystal2017

    • Author(s)
      S. Watanabe
    • Organizer
      The 26th International Conference on High Pressure Science and Technology (AIRAPT26), Beijing, China
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Novel Superconductivity and Quantum Criticality Induced by Critical Valence Fluctuations2017

    • Author(s)
      S. Watanabe
    • Organizer
      The International Workshop on Recent Progress in Superconductivity (IWRS 2017), PyeongChang, Korea
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Origin of Quantum Criticality in Yb-Al-Au Quasicrystal and Approximant Crystal2017

    • Author(s)
      S. Watanabe
    • Organizer
      International Workshop on "Open Space Between Aperiodic Order and Strong Electronic Correlations", Annecy, France
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 遍歴電子系の磁気量子臨界点における熱膨張係数とグリュナイゼンパラメータ2017

    • Author(s)
      渡辺真仁、三宅和正
    • Organizer
      日本物理学会、領域8 (岩手大学)
    • Related Report
      2017 Annual Research Report
  • [Presentation] Yb系準結晶と近似結晶の量子臨界性とT/Bスケーリングの出現機構2017

    • Author(s)
      渡辺真仁、三宅和正
    • Organizer
      日本物理学会
    • Place of Presentation
      大阪大学(大阪府豊中市)
    • Related Report
      2016 Research-status Report
  • [Presentation] f電子系準結晶・近似結晶の量子臨界性2016

    • Author(s)
      渡辺真仁
    • Organizer
      日本物理学会
    • Place of Presentation
      東北学院大学
    • Year and Date
      2016-03-21
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] Universality of Unconventional Quantum Criticality in Correlated Electrons on Periodic- and Quasi-crystal Systems2016

    • Author(s)
      S. Watanabe
    • Organizer
      14th Bilateral Japanese -German Symposium "Effects of Parity Mixing in Correlated Electron Systems"
    • Place of Presentation
      ガトーキングダム札幌(北海道札幌市)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] New Quantum Criticality Revealed under Pressure2016

    • Author(s)
      S. Watanabe
    • Organizer
      The 17th International Conference on High Pressure in Semiconductor Physics (HPSP-17) and Workshop on High-pressure Study on Superconducting (WHS)
    • Place of Presentation
      東京大学(東京都文京区本郷)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Unconventional Quantum Criticality Universal to Yb-Based Periodic- and Quasi-Crystal Systems2016

    • Author(s)
      S. Watanabe
    • Organizer
      International Workshop on Fermi-Surface Topology and Emergence of Novel Electronic States in Strongly Correlated Systems
    • Place of Presentation
      ナタル(ブラジル)
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 圧力と磁場制御による量子臨界物性の新展開2016

    • Author(s)
      渡辺真仁
    • Organizer
      第2回強相関電子系研究会
    • Place of Presentation
      島根大学(島根県松江市)
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 局所相関と電荷移動がもたらす新しい量子現象2015

    • Author(s)
      渡辺真仁
    • Organizer
      東京大学物性研究所短期研究会「量子物質研究の最前線」
    • Place of Presentation
      東京大学物性研究所
    • Year and Date
      2015-12-09
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] Universal Quantum Criticality in the Yb-Based Heavy Fermions on the Quasicrystal and Periodic-Crystal Systems2015

    • Author(s)
      S. Watanabe
    • Organizer
      Toyota RIKEN International Workshop 2015 on "Strongly Correlated Electron Systems: Open Space between Heavy Fermions and Quasi-crystals
    • Place of Presentation
      Nagoya University
    • Year and Date
      2015-11-18
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Quantum Criticality and Emergence of the T /B Scaling in Strongly Correlated Metals2015

    • Author(s)
      S. Watanabe
    • Organizer
      International Conference on Magnetism 2015 (ICM2015)
    • Place of Presentation
      Barcelona (Spain)
    • Year and Date
      2015-07-10
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] 渡辺研究室

    • URL

      http://www.mns.kyutech.ac.jp/~swata/

    • Related Report
      2017 Annual Research Report
  • [Remarks] 渡辺研究室

    • URL

      http://www.mns.kyutech.ac.jp/~swata/index.html

    • Related Report
      2016 Research-status Report 2015 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2020-05-15  

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