Study of heavy fermion behavior in transition metal compounds

• Project/Area Number: 21740242
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics II
• Research Institution: The University of Tokyo
• Principal Investigator: UDAGAWA Masafumi 東京大学, 大学院・工学系研究科, 助教 (80431790)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000); Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 強相関系 / 遷移金属化合物 / 重い電子系 / 磁性 / 数値計算 / 多軌道系

Research Abstract

Transition metal oxides with large quasiparticle mass have two features in common : geometrical frustration and strong electron correlation. I have examined the interplay of these two effects, and have revealed that chirality-driven heavy-fermion behavior emerges in Kagome lattice Hubbard model, which is a minimal model with these two ingredients.

Research Products

• [Journal Article] Hidden Multiple-Spin Interactions as an Origin of Spin Scalar Chiral Order in Frustrated Kondo Lattice Models (2012)
  • Author(s): Yutaka Akagi, Masafumi Udagawa, Yukitoshi Motome
  • Journal Title: Physical Review Letters Volume: 108 Issue: 9 Pages: 96401-96401
  • DOI: 10.1103/physrevlett.108.096401
  • Peer Reviewed
• [Journal Article] Non-Kondo mechanism for resistivity minimum in spin ice conduction systems (2012)
  • Author(s): Masafumi Udagawa, Hiroaki Ishizuka
  • Journal Title: Physical Review Letters Volume: 108 Issue: 6 Pages: 66406-66406
  • DOI: 10.1103/physrevlett.108.066406
  • Peer Reviewed
• [Journal Article] Non-Kondo mechanism for resistivity minimum in spin ice conduction systems (2012)
  • Author(s): M.Udagawa, H.Ishizuka, Y.Motome
  • Journal Title: Physical Review Letters Volume: 108 Pages: 66406-10
  • Peer Reviewed
• [Journal Article] Hidden Multiple-Spin Interactions as an Origin of Spin Scalar Chiral Order in Frustrated Kondo Lattice Models (2012)
  • Author(s): Y.Akagi, M.Udagawa, Y.Motome
  • Journal Title: Physical Review Letters Volume: 108 Pages: 96401-4
  • Peer Reviewed
• [Journal Article] Partial Disorder in the Periodic Anderson Model on a Triangular Lattice (2011)
  • Author(s): S. Hayami, M. Udagawa, and Y. Motome
  • Journal Title: J. Phys. Soc. Jpn Volume: 80 Issue: 7 Pages: 73704-73704
  • DOI: 10.1143/jpsj.80.073704
  • NAID: 40018902844
  • Peer Reviewed
• [Journal Article] Mean-Field Study of Charge, Spin, and Orbital Orderings in Triangular-Lattice Compounds ANiO2 (A=Na, Li, Ag) (2011)
  • Author(s): Hiroshi Uchigaito, Masafumi Udagawa, Yukitoshi Motome
  • Journal Title: Journal of the Physical Society of Japan Volume: 80 Issue: 4 Pages: 044705-044705
  • DOI: 10.1143/jpsj.80.044705
  • NAID: 40018787426
  • Peer Reviewed
• [Journal Article] Metal-insulator transition caused by the coupling to localized charge-frustrated systems under ice-rule local constraint (2011)
  • Author(s): H. Ishizuka, M. Udagawa, and Y. Motome
  • Journal Title: Phys. Rev. B Volume: 83 Issue: 12 Pages: 125101-125101
  • DOI: 10.1103/physrevb.83.125101
  • Peer Reviewed
• [Journal Article] Variational Monte Carlo Study of the Kondo Necklace Model with Geometrical Frustration (2011)
  • Author(s): Y. Motome, K. Nakamikawa, Y. Yamaji, and M. Udagawa
  • Journal Title: J. Phys. Soc. Jpn Volume: 80 Issue: Suppl.A Pages: 133-133
  • DOI: 10.1143/jpsjs.80sa.sa133
  • Peer Reviewed
• [Journal Article] Partial Disorder in the Periodic Anderson Model on a Triangular Latice (2011)
  • Author(s): S.Hayami, M.Udagawa, Y.Motome
  • Journal Title: Journal of Physical Society of Japan Volume: 80 Pages: 73704-7
  • Peer Reviewed
• [Journal Article] Partial Kondo screening in frustrated Kondo lattice systems (2011)
  • Author(s): Y.Motome, K.Nakamikawa, Y.Yamaji, M.Udagawa
  • Journal Title: Physical Review Letters Volume: 105 Pages: 36403-6
  • Peer Reviewed
• [Journal Article] Interplay of spin-orbit interaction and electron correlation on the Van Vleck susceptibility in transition metal compounds (2010)
  • Author(s): Masafumi Udagawa and Youichi Yanase
  • Journal Title: Journal of the Physical Society of Japan Volume: 79 Issue: 12 Pages: 123601-123601
  • DOI: 10.1143/jpsj.79.123601
  • NAID: 40017404372
  • Peer Reviewed
• [Journal Article] Partial Kondo screening in frustrated Kondo lattice systems (2010)
  • Author(s): Y. Motome, K. Nakamikawa, Y. Yamaji, and M. Udagawa
  • Journal Title: Phys. Rev. Lett Volume: 105 Issue: 3 Pages: 36403-36403
  • DOI: 10.1103/physrevlett.105.036403
  • Peer Reviewed
• [Journal Article] Quantum Melting of Charge Ice and Non-Fermi-Liquid Behavior : An Exact Solution for the Extended Falicov-Kimball Model in the Ice-Rule Limit (2010)
  • Author(s): M. Udagawa, H. Ishizuka, and Y. Motome
  • Journal Title: Phys. Rev. Lett Volume: 104 Issue: 22 Pages: 226405-226405
  • DOI: 10.1103/physrevlett.104.226405
  • Peer Reviewed
• [Journal Article] Chirality-driven mass enhancement in the kagome Hubbard model (2010)
  • Author(s): M. Udagawa and Y. Motome
  • Journal Title: Phys. Rev. Lett Volume: 104 Issue: 10 Pages: 106409-106409
  • DOI: 10.1103/physrevlett.104.106409
  • Peer Reviewed
• [Journal Article] Chirality-spin separation in the Hubbard model on the kagome lattice (2010)
  • Author(s): M. Udagawa and Y. Motome
  • Journal Title: J. Phys.: Conf. Ser Volume: 200 Issue: 1 Pages: 12214-12214
  • DOI: 10.1088/1742-6596/200/1/012214
  • Peer Reviewed
• [Journal Article] Quantum melting of charge ice and non-Fermi-liquid behavior (2010)
  • Author(s): M.Udagawa, H.Ishizuka, Y.Motome
  • Journal Title: Physical Review Letters Volume: 104 Pages: 226405-8
  • Peer Reviewed
• [Journal Article] Chirality-driven mass enhancement in the Kagome Hubbard model (2010)
  • Author(s): M.Udagawa, Y.Motome
  • Journal Title: Physical Review Letters Volume: 104 Pages: 106409-12
  • Peer Reviewed
• [Journal Article] Chirality-driven mass enhancement in the kagome Hubbard model (2010)
  • Author(s): Masafumi Udagawa
  • Journal Title: Physical Review Letters 104 Pages: 106409-106412
  • Peer Reviewed
• [Journal Article] Chirality-spin separation in the Hubbard model on the kagome lattice (2010)
  • Author(s): Masafumi Udagawa
  • Journal Title: Journal of Physics : Conference Series 200 Pages: 12214-12217
  • Peer Reviewed
• [Journal Article] Instability to partial Kondo-singlet state in the Kondo necklace model on frustrated lattices (2009)
  • Author(s): Yukitoshi Motome, Youhei Yamaji and Masafumi Udagawa
  • Journal Title: Journal of Physics : Conference Series Volume: 145 Pages: 012068-012068
  • DOI: 10.1088/1742-6596/145/1/012068
  • Peer Reviewed
• [Journal Article] Cluster dynamical mean-field study of the Hubbard model on a 3D frustrated hyperkagome lattice (2009)
  • Author(s): Masafumi Udagawa and Yukitoshi Motome
  • Journal Title: Journal of Physics : Conference Series Volume: 145 Pages: 012013-012013
  • DOI: 10.1088/1742-6596/145/1/012013
  • Peer Reviewed
• [Presentation] Monte Carlo study of a spin-ice type Kondo lattice model on a pyrochlore lattice (2012)
  • Author(s): H.Ishizuka, M.Udagawa, Y.Motome
  • Organizer: 2012 APS March meeting
  • Place of Presentation: Boston, USA
  • Year and Date: 2012-02-29
• [Presentation] Partial disorder in the periodic Anderson model on a triangular lattice (2012)
  • Author(s): S.Hayami, M.Udagawa, Y.Motome
  • Organizer: 2012 APS March meeting
  • Place of Presentation: Boston, USA
  • Year and Date: 2012-02-29
• [Presentation] Spin scalar chiral ordering and hidden positive biquadratic interaction in frustrated Kondo lattice systems (2012)
  • Author(s): Y.Akagi, M.Udagawa, Y.Motome
  • Organizer: 2012 APS March meeting
  • Place of Presentation: Boston, USA
  • Year and Date: 2012-02-29
• [Presentation] Non-Kondo mechanism of Resistivity Minimum in Spin-Ice Conduction Systems (2011)
  • Author(s): M.Udagawa, H.Ishizuka, Y.Motome
  • Organizer: SCES 2011
  • Place of Presentation: Cambridge, Britain
  • Year and Date: 2011-09-02
• [Presentation] 伝導電子系における幾何学的フラストレーション.スピンアイス伝導系Pr2Ir2O7の抵抗極小現象 (2011)
  • Author(s): 宇田川将文
  • Organizer: 強相関電子系理論の最前線-若手によるオープン・イノベーション-
  • Place of Presentation: 紀伊勝浦
• [Presentation] 幾何学的フラストレーションを持つ伝導電子系の数値的研究 (2011)
  • Author(s): 宇田川将文
  • Organizer: 次世代ナノ情報合同研究会「計算物質科学の課題と展望」
  • Place of Presentation: 東京大学物性研究所
• [Presentation] Chirality-driven heavy-fermion behavior in kagome Hubbard model (2010)
  • Author(s): 宇田川将文
  • Organizer: March Meeting 2010
  • Place of Presentation: Portland, Oregon
  • Year and Date: 2010-03-16
• [Presentation] フラストレート伝導電子系の励起状態:電荷アイス相のモノポール励起と分数電荷 (2010)
  • Author(s): 宇田川将文,石塚大晃,求幸年
  • Organizer: 2010年日本物理学会秋季大会
  • Place of Presentation: 大阪府大
• [Presentation] スピンアイスと結合した伝導電子系の磁気秩序と電子状態 (2010)
  • Author(s): 宇田川将文,石塚大晃,求幸年
  • Organizer: 2010年日本物理学会秋季大会
  • Place of Presentation: 大阪府大
• [Presentation] Geometrical frustration in itinerant electron systems (2010)
  • Author(s): Masafumi Udagawa
  • Organizer: Japan-Switzerland Joint Workshop "New Trends in Theory of Correlated Materials"
  • Place of Presentation: Chiba
• [Presentation] Quantum criticality in itinerant ice-rule systems (2010)
  • Author(s): Masafumi Udagawa
  • Organizer: Highly Frustrated Magnetism 2010(HFM2010)
  • Place of Presentation: Baltimore
• [Presentation] Quantum criticality in conduction electrons coupled to an ice-rule localized system (2010)
  • Author(s): Masafumi Udagawa
  • Organizer: XXIV International Conference on Statistical Physics of the International Union for Pure and Applied Physics(STATPHYS24)
  • Place of Presentation: Cairns
• [Presentation] フラストレート伝導電子系の特異な性質:"icerule"局所拘束条件との結合効果 (2010)
  • Author(s): 宇田川将文,石塚大晃,求幸年
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山大
• [Presentation] Chirality-driven heavy-fermion behavior in kagome Hubbard model (2010)
  • Author(s): Masafumi Udagawa, Yukitoshi Motome
  • Organizer: APS March meeting
  • Place of Presentation: Portland
• [Presentation] フラストレート伝導電子系における"ice rule"局所拘束条件の効果 (2010)
  • Author(s): 宇田川将文、求幸年
  • Organizer: 特定領域研究「フラストレーションか.創る新しい物性」平成21年度領域成果報告会
  • Place of Presentation: 京都大学
• [Presentation] カゴメ格子上ハバードモデルにおけるカイラリテーと重い電子状態形成 (2009)
  • Author(s): 宇田川将文
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-27
• [Presentation] Chirality-spin separation in Kagome Hubbard model (2009)
  • Author(s): 宇田川将文
  • Organizer: International Conference on Magnetism
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-28
• [Presentation] カゴメ格子上ハバードモデルにおけるカイラリティと重い電子状態形成 (2009)
  • Author(s): 宇田川将文、求幸年
  • Organizer: 2009年日本物理学会秋季大会
  • Place of Presentation: 熊本大学
• [Presentation] 遷移金属化合物のVan Vleck常磁性に対する強相関効果 (2009)
  • Author(s): 宇田川将文、柳瀬陽一
  • Organizer: 2009年日本物理学会秋季大会
  • Place of Presentation: 熊本大学
• [Presentation] Theoretical study of Van Vleck susceptibility in transition metal compounds (2009)
  • Author(s): Masafumi Udagawa
  • Organizer: Japan UK meeting
  • Place of Presentation: Kyoto University
• [Presentation] スピンカイライリティー自由度の解放による重い電子形成機構-カコメ格子上ハバートモテルの解析から- (2009)
  • Author(s): 宇田川将文、求幸年
  • Organizer: 特定領域研究「フラストレーションか創る新しい物性」第4回トヒカルミーティンク「フラストレーションとカイラリティ」
  • Place of Presentation: 有馬
• [Presentation] Theoretical Study of Van-Vleck susceptibility in Sr2RuO4 (2009)
  • Author(s): 宇田川将文、柳瀬陽一
  • Organizer: 科研費「特定領域」スーパークリーン物質で実現する新しい量子相の物理A03, A04合同研究会
  • Place of Presentation: 箱根