Search for a Kondo semiconducting state near the quantum critical point under high pressure

• Project/Area Number: 18K18737
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 13:Condensed matter physics and related fields
• Research Institution: Hiroshima University
• Principal Investigator: Matsumura Takeshi 広島大学, 先進理工系科学研究科(先), 教授 (00312546)
• Co-Investigator(Kenkyū-buntansha): 梅尾 和則 広島大学, 自然科学研究支援開発センター, 准教授 (10223596)
• Project Period (FY): 2018-06-29 – 2021-03-31
• Project Status: Completed (Fiscal Year 2020)
• Budget Amount: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000); Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
• Keywords: 磁性 / 電気伝導 / 量子臨界現象 / 圧力 / 圧力下電気伝導 / 近藤効果 / スピンゆらぎ / 価数ゆらぎ / 近藤半導体 / 量子臨界点 / 高圧

Outline of Final Research Achievements

We have studied the electronic properties of CeS, which has recently been expected to realize a Kondo insulator state under high pressure due to an increase in c-f hybridization, starting from a normal Kondo metal. We measured the electrical resistivity and Hall effect up to pressures above the critical point Pc. Although a strong anomaly was observed in resistivity reminiscent of a semiconducting state, the Hall effect did not exhibit a semiconducting behavior, indicating that the anomalous increase in resistivity is caused by a mechanism different from the energy gap formation at the Fermi level. Another finding in this research from which we expect future progress is on TmTe, which exhibit an insulator-to-metal transition with a simultaneous appearance of a ferromagnetic order. We found an anomalous increase in magnetic susceptibility around the critical pressure which is reminiscent of a precursor of the ferromagnetism.

Academic Significance and Societal Importance of the Research Achievements

物質は一般に金属か絶縁体のどちらかに分類されるが，その境界領域がどうなっているかは実はまだ謎が多い．金属に圧力をかけることで電子状態を変化させ，絶縁体に移り変わる過程，あるいは絶縁体から金属に変わる過程が詳細に観察できれば，その謎に迫ることができる．しかし，その様相は多彩である．本研究では原子に局在して磁性を担う電子も電気伝導性の変化に関与する現象のいくつかを調べた．圧力下で電子間の相互作用が変化することで，伝導電子の散乱状態が変わったり，また，電子が原子に局在した状態から原子間を動き回る状態に変化することでスピンがそろう強磁性に変化する現象などを詳細に調べた．

Research Products

• [Journal Article] Anomalous Hall effect in Cu doped Bi2Te3 topological insulator (2020)
  • Author(s): A. Singh, S. Kumar, M. Singh, P. Singh, R. Singh, V. K Gangwar, A. Lakhani, S. Patil, E. F. Schwier, T. Matsumura, K. Shimada, A. K. Ghosh, and S. Chatterjee
  • Journal Title: J. Phys.: Condens. Matter Volume: 32 Issue: 30 Pages: 305602-305602
  • DOI: 10.1088/1361-648x/ab8521
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Isotropic Parallel Antiferromagnetism in the Magnetic-Field-Induced Charge-Ordered State of SmRu4P12 caused by p-f hybridization (2020)
  • Author(s): T. Matsumura, S. Michimura, T. Inami, C. H. Lee, M. Matsuda, H. Nakao, M. Mizumaki, N. Kawamura, M. Tsukagoshi, S. Tsutsui, H. Sugawara, K. Fushiya, T. D. Matsuda, R. Higashinaka, and Y. Aoki
  • Journal Title: Physical Review B Volume: 102 Issue: 21 Pages: 214444-214444
  • DOI: 10.1103/physrevb.102.214444
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Uniaxial-Pressure-Induced Release of Magnetic Frustration in a Triangular Lattice Antiferromagnet YbCuGe (2020)
  • Author(s): Umeo Kazunori、Watanabe Daichi、Araki Koji、Katoh Kenichi、Takabatake Toshiro
  • Journal Title: Metals Volume: 11 Issue: 1 Pages: 30-30
  • DOI: 10.3390/met11010030
  • Peer Reviewed / Open Access
• [Journal Article] Magnetic Structure of a Chiral Magnet DyNi3Al9 (2020)
  • Author(s): Iba Kenshirou、Matsumura Takeshi、Nakao Akiko、Ishikawa Yoshihisa、Ohishi Kazuki、Kiyanagi Ryoji、Kousaka Yusuke、Ohara Shigeo
  • Journal Title: JPS Conf. Proc. Volume: 30 Pages: 011164-6
  • DOI: 10.7566/jpscp.30.011164
  • NAID: 130008152271
  • Peer Reviewed / Open Access
• [Journal Article] Magnetic Anisotropy of Chiral Magnet Yb(Ni1-xCux)3Al9 at High Magnetic Fields (2020)
  • Author(s): Ito Daichi、Matsumura Takeshi、Ohara Shigeo
  • Journal Title: JPS Conf. Proc. Volume: 30 Pages: 011168-6
  • DOI: 10.7566/jpscp.30.011168
  • Peer Reviewed / Open Access
• [Journal Article] Quantum critical phenomenon of CeS studied by electrical transport measurements under high pressure (2020)
  • Author(s): H. Honda, Y. Ozono, T. Matsumura, M. Sera, H. Tanida, and A. Ochiai
  • Journal Title: JPS Conf. Proc. Volume: 20
  • DOI: 10.7566/jpscp.30.011129
  • Peer Reviewed
• [Journal Article] Orbital dependent magnetic exchange interaction in CeXc (Xc=S, Se, Te) (2020)
  • Author(s): T. Matsumura and A. Ochiai
  • Journal Title: JPS Conf. Proc. Volume: 30
  • DOI: 10.7566/jpscp.30.011154
  • Peer Reviewed
• [Journal Article] Magnetic phase transitions of CeTe at 50 mK in fields up to 28 T (2020)
  • Author(s): S. Nakamura, S. Awaji, T. Yanagisawa, T. Saito, T. Matsumura, and A. Ochiai
  • Journal Title: JPS Conf. Proc. Volume: 30
  • DOI: 10.7566/jpscp.30.011155
  • Peer Reviewed
• [Journal Article] Magnetic Properties in Tetragonal Antiferromagnet CeCoSi (2020)
  • Author(s): H. Tanida, K. Mitsumoto, Y. Muro, T. Fukuhara, Y. Kawamura, A. Kondo, K. Kindo, Y. Matsumoto, T. Namiki, T. Kuwai, and T. Matsumura
  • Journal Title: JPS Conference Proceedings Volume: 30
  • DOI: 10.7566/jpscp.30.011156
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Not a Simple Ferro-quadrupole Order in DyB6 (2019)
  • Author(s): M. Sera, T. Yonemura, K. Itamochi, T. Matsumura, M. Hiroi, and K. Takahashi
  • Journal Title: J. Phys. Soc. Jpn. Volume: 88 Issue: 5 Pages: 054703-054703
  • DOI: 10.7566/jpsj.88.054703
  • NAID: 40021885897
  • Peer Reviewed
• [Journal Article] Successive Phase Transition at Ambient Pressure in CeCoSi: Single Crystal Studies (2019)
  • Author(s): H. Tanida, K. Mitsumoto, Y. Muro, T. Fukuhara, Y. Kawamura, A. Kondo, K. Kindo, Y. Matsumoto, T. Namiki, T. Kuwai, and T. Matsumura
  • Journal Title: Journal of Physical Society of Japan Volume: 88 Issue: 5 Pages: 1-10
  • DOI: 10.7566/jpsj.88.054716
  • NAID: 40021885937
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Magnetic Field Induced Triple-q Magnetic Order in Trillium Lattice Antiferromagnet EuPtSi Studied by Resonant X-ray Scattering (2019)
  • Author(s): Tabata Chihiro、Matsumura Takeshi、Nakao Hironori、Michimura Shinji、Kakihana Masashi、Inami Toshiya、Kaneko Koji、Hedo Masato、Nakama Takao、Onuki Yoshichika
  • Journal Title: Journal of the Physical Society of Japan Volume: 88 Issue: 9 Pages: 093704-093704
  • DOI: 10.7566/jpsj.88.093704
  • NAID: 40022008716
  • Peer Reviewed
• [Journal Article] Room temperature exchange bias in antiferromagnetic composite BiFeO3-TbMnO3 (2019)
  • Author(s): P. K. Gupta, S. Ghosh, S. Kumar, P. A., P. Singh, M. Alam, A. Singh, S. Roy, R. Singh, B. P. Singh, N. N. Kumar, E. F. Schwier, M. Sawada, T. Matsumura, K. Shimada, H.-J. Lin, Y.-Y. Chin, A. K. Ghosh, and S. Chatterjee
  • Journal Title: J. Appl. Phys. Volume: 126 Issue: 24
  • DOI: 10.1063/1.5109713
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Helical Ordering of Spin Trimers in a Distorted Kagome Lattice of Gd3Ru4Al12 Studied by Resonant X-ray Diffraction (2019)
  • Author(s): Matsumura Takeshi、Ozono Yusaku、Nakamura Shintaro、Kabeya Noriyuki、Ochiai Akira
  • Journal Title: Journal of the Physical Society of Japan Volume: 88 Issue: 2 Pages: 023704-023704
  • DOI: 10.7566/jpsj.88.023704
  • NAID: 210000135083
  • Peer Reviewed
• [Journal Article] Appearance of the octupole ordered phase IV in CexLa1-xB6 (2018)
  • Author(s): M. Sera, K. Kunimori, T. Matsumura, A. Kondo, H. Tanida, H. Tou, F. Iga
  • Journal Title: Physical Review B Volume: 97 Issue: 18 Pages: 184417-184417
  • DOI: 10.1103/physrevb.97.184417
  • Peer Reviewed
• [Presentation] 共鳴X線回折によるDyNi3Ga9の反強磁性フロップの観測 (2020)
  • Author(s): 塚越舜, 松村武, 道村真司, 稲見俊哉, 道村真司, 大原繁男
  • Organizer: 日本物理学会 第76回年次大会
• [Presentation] SmRu4P12磁場誘起電荷秩序相における長短型反強磁性と格子変調 (2020)
  • Author(s): 松村武, 道村真司, 稲見俊哉, 李哲虎, 松田雅昌, 中尾裕則, 水牧仁一朗, 河村直己, 筒井智嗣, 塚越舜, 菅原仁, 東中隆二, 松田達磨, 青木勇二
  • Organizer: 日本物理学会 第76回年次大会
• [Presentation] TmTe, YbTeの圧力誘起半導体金属転移と赤外スペクトル (2020)
  • Author(s): 岡村英一, 丸岳克典, 松村武, 池本夕佳，森脇太郎
  • Organizer: 日本物理学会 第76回年次大会
• [Presentation] 極低温強磁場領域におけるCeTeの多極子転移 (2020)
  • Author(s): 中村慎太郎, 淡路智, 柳澤達也, 斎藤猛敬, 松村武, 落合明
  • Organizer: 日本物理学会第75回年次大会
• [Presentation] 共鳴X線回折とXMCDによるSmRu4P12の磁場誘起電荷秩序状態の研究 (2020)
  • Author(s): 松村武, 塚越舜, 河村直己, 水牧仁一朗, 稲見俊哉, 道村真司, 東中隆二, 松田達磨, 青木勇二
  • Organizer: 日本物理学会第75回年次大会
• [Presentation] 共鳴X線散乱によるキラル磁性体DyNi3Ga9のらせん磁気秩序の観測 (2020)
  • Author(s): 塚越舜, 松村武, 道村真司, 稲見俊哉, 大原繁男
  • Organizer: 日本物理学会第75回年次大会
• [Presentation] 結晶場励起の分散関係からみたCeX(X=S,Se,Te)の奇妙な交換相互作用 (2019)
  • Author(s): 松村武, 林佑弥, 落合明
  • Organizer: 日本物理学会 2019年秋季大会
• [Presentation] CeRu2Al10における電流誘起磁化とその解釈 (2019)
  • Author(s): 高力暁成, 山本将隆, 鹿内奈南, 齋藤開, 田端千紘, 日高宏之, 柳澤達也, 網塚浩, 谷田博司, 松村武, 世良正文
  • Organizer: 日本物理学会 2019年秋季大会
• [Presentation] 圧力下電気伝導測定によるCeSの量子臨界現象の研究 II (2019)
  • Author(s): 尾園優作, 本田脩峰, 松村武, 世良正文, 谷田博司, 落合明
  • Organizer: 日本物理学会 2019年秋季大会
• [Presentation] 高磁場におけるキラル磁性体Yb(Ni1-xCux)3Al9の磁気異方性 (2019)
  • Author(s): 伊藤大地, 松村武, 大原繁男
  • Organizer: 日本物理学会 2019年秋季大会
• [Presentation] 共鳴X線散乱によるキラル磁性体DyNi3Ga9の螺旋秩序の観測 (2019)
  • Author(s): 塚越舜, 松村武, 道村真司, 稲見俊哉, 大原繁男
  • Organizer: 日本物理学会 2019年秋季大会
• [Presentation] キラル磁性体DyNi3Al9の磁気構造 (2019)
  • Author(s): 射場健士朗, 松村武, 中尾朗子, 石川喜久, 鬼柳亮嗣, 大石一城, 高阪勇輔, 大原繁男
  • Organizer: 日本物理学会 2019年秋季大会
• [Presentation] Orbital dependent magnetic exchange interaction in CeXc (Xc=S, Se, Te) (2019)
  • Author(s): T. Matsumura and A. Ochiai
  • Organizer: International Conference on Strongly Correlated Electron Systems 2019
  • Int'l Joint Research
• [Presentation] Chiral soliton lattice formation in Yb(Ni1-xCux)3Al9 (2019)
  • Author(s): T. Matsumura
  • Organizer: J-Physics 2019 International Conference
  • Int'l Joint Research / Invited
• [Presentation] Magnetic anisotropy of chiral magnet Yb(Ni1－xCux)3Al9 at high magnetic fields (2019)
  • Author(s): D. Ito, T. Matsumura, and S. Ohara
  • Organizer: International Conference on Strongly Correlated Electron Systems 2019
• [Presentation] Quantum Critical Phenomenon of CeS studied by Electrical Transport Measurements under High Pressure (2019)
  • Author(s): Y. Ozono, H. Honda, T. Matsumura, M. Sera, H. Tanida, and A. Ochiai
  • Organizer: International Conference on Strongly Correlated Electron Systems 2019
• [Presentation] Magnetic structure of a chiral magnet DyNi3Al9 (2019)
  • Author(s): K. Iba, T. Matsumura, A. Nakao, Y. Ishikawa, R. Kiyanagi, K. Ohishi, Y. Kousaka, and S. Ohara
  • Organizer: International Conference on Strongly Correlated Electron Systems 2019
• [Presentation] SmRu4P12の磁場誘起秩序相における軟X線共鳴X線回折 (2019)
  • Author(s): 道村真司, 松村武, 中尾裕則, 田端千紘, 東中隆二, 松田達磨, 青木勇二
  • Organizer: 日本物理学会 第74回年次大会
• [Presentation] 変形カゴメ格子Gd3Ru4Al12における格子非整合磁気秩序 (2019)
  • Author(s): 尾園優作, 松村武, 中村慎太郎, 壁谷典幸, 落合明
  • Organizer: 日本物理学会 第74回年次大会
• [Presentation] 共鳴X線散乱によるカイラル磁性体EuPtSiの磁気構造の研究 (2019)
  • Author(s): 田端千紘, 松村武, 中尾裕則, 道村真司, 垣花将司, 稲見俊哉, 金子耕士, 辺土正人, 仲間隆男, 大貫惇睦
  • Organizer: 日本物理学会 第74回年次大会
• [Presentation] CeRu2Al10における電流誘起磁化 (2019)
  • Author(s): 高力暁成, 山本将隆, 鹿内奈南, 齋藤開, 田端千紘, 日高宏之, 柳澤達也, 網塚浩, 谷田博司, 松村武, 世良正文
  • Organizer: 日本物理学会 第74回年次大会
• [Presentation] CeCoSiの磁性と圧力効果 (2018)
  • Author(s): 谷田博司, 松本裕司, 室裕司, 福原忠, 桑井智彦, 並木孝洋, 西村克彦, 松村武
  • Organizer: 日本物理学会 2018年秋季大会
• [Presentation] Tm1-xYbxTeへの圧力印加による半導体金属転移とその境界領域 (2018)
  • Author(s): 大西佑哉, 松村武, 谷田博司, 喜多要介, 世良正文
  • Organizer: 日本物理学会 2018年秋季大会
• [Presentation] 圧力下電気抵抗測定によるCeSの量子臨界現象の研究 (2018)
  • Author(s): 本田脩峰, 松村武, 谷田博司, 世良正文, 林佑弥, 落合明, 北川健太郎
  • Organizer: 日本物理学会 2018年秋季大会
• [Book] "Competing Order Parameers in Rare-Earth Hexa- and Tetraborides" in Rare Earth Borides (2021)
  • Author(s): T. Matsumura (ed. D. S. Inosov)
  • Total Pages: 42
  • Publisher: Jenny Stanford Publishing
  • ISBN: 9789814877565
• [Remarks] T. Matsumura's web page
  • URL: https://home.hiroshima-u.ac.jp/tmatsu/Matsumura/Home.html
• [Remarks] T. Matsumura's web site
  • URL: https://home.hiroshima-u.ac.jp/tmatsu/Matsumura/Home.html
• [Remarks] T. Matsumura's Web Page
  • URL: https://home.hiroshima-u.ac.jp/tmatsu/Matsumura/Home.html