Quantum critical behavior in pressure-induced ferromagnetic systems by tuning pressure and magnetic field

2013 Fiscal Year Final Research Report

• Project/Area Number: 24740220
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics II
• Research Institution: The University of Tokyo
• Principal Investigator: MATSUBAYASHI Kazuyuki 東京大学, 物性研究所, 助教 (10451890)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Keywords: 重い電子系 / 量子相転移 / 圧力 / 磁場 / メタ磁性

Research Abstract

We investigated the pressure-induced valence change and metamagnetic behavior in the vicinity of a magnetic quantum phase transition tuned by pressure and/or magnetic field. We have revealed a characteristic pressure-induced Yb valence crossover within the temperature-pressure phase diagram of YbNi3Ga9 in the vicinity of the magnetic quantum phase transition. Moreover, a first-order metamagnetic transition is found below the critical pressure.

Research Products

• [Journal Article] Microscopic Evidence of a Crossover to a Low-Temperature Intermediate Valence State in YbCo_2Zn_<20> (2013)
  • Author(s): T. Mito, H. Hara, T. Ishida, K. Nakagawara, T. Koyama, K. Ueda, T. Kohara, K. Ishida, K. Matsubayashi, Y. Saiga, Y. Uwatoko
  • Journal Title: J. Phys. Soc. Jpn. Volume: 82 Pages: 103704
  • DOI: 10.7566/JPSJ.82.103704
  • Peer Reviewed
• [Journal Article] Pressure-induced Suppression of the Antiferromagnetic Transition in YbNi_3Al_9 Single Crystal (2012)
  • Author(s): T. Hirayama, K. Matsubayashi, T. Yamashita, S. Ohara, K. Munakata and Y. Uwatoko
  • Journal Title: J. Phys. : Conf. Ser. Volume: 391 Pages: 012020
  • DOI: 10.1088/1742-6596/391/1/012020
  • Peer Reviewed
• [Journal Article] Low temperature properties of a low carrier heavy fermion YbPtSb (2012)
  • Author(s): K. Matsubayashi, R. Yamanaka, H. S. Suzuki, K. Munakata and Y. Uwatoko
  • Journal Title: J. Phys. : Conf. Ser. Volume: 391 Pages: 012040
  • DOI: 10.1088/1742-6596/391/1/012040
  • Peer Reviewed
• [Journal Article] Heat Capacity Measurement of Heavy Fermion YbCo_2Zn_<20> under Magnetic Field (2012)
  • Author(s): R. Yamanaka, K. Matsubayashi, Y. Saiga, T. Kawae and Y. Uwatoko
  • Journal Title: J. Phys. : Conf. Ser. Volume: 391 Pages: 012078
  • DOI: 10.1088/1742-6596/391/1/012078
  • Peer Reviewed
• [Journal Article] Mechanism of Field Induced Fermi Liquid State in Yb-Based Heavy-Fermion Compound : X-ray Absorption Spectroscopy and Nuclear Magnetic Resonance Studies of YbCo_2Zn_<20> (2012)
  • Author(s): T. Mito, T. Koyama, K. Nakagawara, T. Ishida, K. Ueda, T. Kohara, K. Matsubayashi, Y. Saiga, K. Munakata, Y. Uwatoko, M. Mizumaki, N. Kawamura, B. Idzikowski, and M. Reiffers
  • Journal Title: J. Phys. Soc. Jpn. Volume: 81 Pages: 033706
  • DOI: 10.1143/JPSJ.81.033706
  • Peer Reviewed
• [Journal Article] Pressure-Induced Heavy Fermion Superconductivity in the Nonmagnetic Quadrupolar System PrTi_2Al_<20> (2012)
  • Author(s): K. Matsubayashi, T. Tanaka, A. Sakai, S. Nakatsuji, Y. Kubo, and Y. Uwatoko
  • Journal Title: Phys. Rev. Lett. Volume: 109 Pages: 187004
  • DOI: 10.1103/PhysRevLett.109.187004
  • Peer Reviewed
• [Journal Article] 高圧力発生装置の小型化による物性測定環境の拡張 (2012)
  • Author(s): 松林和幸,久田旭彦,河江達也,上床美也
  • Journal Title: 高圧力の科学と技術 Volume: 22 Pages: 206-213
  • URL: https://www.jstage.jst.go.jp/article/jshpreview/22/3/22_206/_pdf
  • Peer Reviewed
• [Journal Article] 容積効率にこだわった高圧セルによる10 GPa級NMR測定 (2012)
  • Author(s): 北川健太郎,松林和幸,後藤弘匡,松本武彦,上床美也,八木健彦,瀧川仁
  • Journal Title: 高圧力の科学と技術 Volume: 22 Pages: 198-205
  • URL: https://www.jstage.jst.go.jp/article/jshpreview/22/3/22_198/_pdf
  • Peer Reviewed
• [Presentation] 重い電子系物質における圧力・磁場誘起量子相転移 (2013)
  • Author(s): 松林和幸
  • Organizer: 東京大学物性研究所短期研究会「極限強磁場科学ー場、物質、プローブのリンクから融合へ」
  • Place of Presentation: 東京大学物性研究所
  • Year and Date: 2013-11-01
  • Invited
• [Presentation] 希土類金属間化合物RNi_3X_9(R : 希土類金属, X :Al, Ga)のカイラル構造とその磁性 (2013)
  • Author(s): 大原繁男,小林拓也,福田智寿,山下哲朗,松本裕司,山浦淳一,宗像孝司,田中斗志貴,松林和幸,上床美也,南部雄亮,宮崎亮一,青木勇二
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 徳島大学
  • Year and Date: 2013-09-27
• [Presentation] 圧力誘起磁気秩序を示すYbCo_2Zn_20およびYbNi_3Ga_9におけるメタ磁性の圧力効果 (2013)
  • Author(s): 松林和幸,河江達也,山下哲朗,大原繁男,北川健太郎,上床美也
  • Organizer: 日本物理学会秋季大会
  • Place of Presentation: 徳島大学
  • Year and Date: 2013-09-26
• [Presentation] Pressure-induced ferromagnetic order on YbNi_3X_9 (X=Al, Ga) (2013)
  • Author(s): K. Matsubayashi, T. Hirayama, Y. Uwatoko, T. Yamashita, S. Ohara
  • Organizer: The International Conference on STRONGLY CORRELATED ELECTRON SYSTEMS
  • Place of Presentation: Hongo, Tokyo, Japan
  • Year and Date: 2013-08-06
• [Presentation] 中間価数物質YbNi_3Ga_9における圧力誘起強磁性秩序と価数クロスオーバー (2013)
  • Author(s): 松林和幸,平山貴士,山下哲郎,大原繁男,河村直己,水牧仁一朗,石松直樹,北川健太郎,上床美也,渡辺真仁
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学
  • Year and Date: 2013-03-28
• [Presentation] X線吸収・発光分光法によるYbNi_3Ga_9のYb価数の温度-圧力相図の作成II (2013)
  • Author(s): 河村直己,松林和幸,金井典子,林久史,石松直樹,水牧仁一朗,山下哲朗,大原繁男,上床美也
  • Organizer: 日本物理学会第68回年次大会
  • Place of Presentation: 広島大学
  • Year and Date: 2013-03-27
• [Presentation] 重い電子系物質の多重極限下比熱測定 (2012)
  • Author(s): 松林和幸
  • Organizer: 新学術領域研究「重い電子系の形成と秩序化」ワークショップ
  • Place of Presentation: 琉球大学
  • Year and Date: 2012-11-23
  • Invited
• [Presentation] Effect of Pressure on the YbNi_3Ga_9 Single Crystal (2012)
  • Author(s): T. Hirayama, K. Matsubayashi, Y. Yamashita, S. Ohara, N. Kawamura, M. Mizumaki, N. Ishimatsu, Y. Uwatoko
  • Organizer: International Conference on Magnetism with Strongly correlated Electron Systems(SCES)
  • Place of Presentation: Bexco, Busan, Korea
  • Year and Date: 2012-07-12
• [Presentation] Valence Fluctuation Study by Using X-ray Absorption and Emission Spectroscopies at Yb L3-edge in YbNi_3Ga_9 (X=Al and Ga) (2012)
  • Author(s): N. Kawamura, K. Matsubayashi, H. Hayashi, N. Knai, M. Mizumaki , Y. Uwatoko, T. Yamashita, S. Ohara
  • Organizer: International Conference on Magnetism with Strongly correlated Electron Systems(SCES)
  • Place of Presentation: Bexco, Busan, Korea
  • Year and Date: 2012-07-10