Field-induced quantum phase transitions studied by means of low-temperature magnetization, specific heat and dielectric measurements

2011 Fiscal Year Final Research Report

• Project/Area Number: 20244053
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: The University of Tokyo
• Principal Investigator: SAKAKIBARA Toshiro 東京大学, 物性研究所, 教授 (70162287)
• Co-Investigator(Renkei-kenkyūsha): TAYAMA Takashi 東京大学, 物性研究所, 助教 (20334344) ; MITAMURA Hiroyuki 東京大学, 物性研究所, 助教 (60282604)
• Project Period (FY): 2008 – 2011
• Keywords: 強相関電子系 / 量子相転移 / 磁化測定 / 比熱測定 / メタ磁性転移 / 磁場誘起秩序

Research Abstract

A quantum phase transition is a transition between different phases of matter at zero temperature. Contrary to the ordinary classical phase transitions which can be attained by decreasing temperature, quantum phase transitions can only be accessed by varying a controlling parameter such as magnetic field, pressure or chemical compositions at absolute zero temperature. Quantum phase transitions have attracted much attention because they describe abrupt changes in the ground state of many-body systems due to quantum fluctuations and exotic phases may appear. In this project, various magnetic-field-induced quantum phase transitions have been studied experimentally. For this purpose, we have developed a low-temperature magnetometer operating at low temperatures down to 50 mK in magnetic fields up to 17 T-a state of the art technology.

Research Products

• [Journal Article] Destruction of the Kondo effect in the cubicheavy-fermion compound Ce_3Pd_20Si_6 (2012)
  • Author(s): Lorenzer, M. Muller, A. Prokofiev, A. Sidorenko, H. Winkler, A. M. Strydom, Y. Shimura, T. Sakakibara, R. Yu, Q. Si and S. Paschen
  • Journal Title: J. Custers, K-A. Nat. Mater Volume: 11 Pages: 189-194
  • DOI: DOI:10.1038/nmat3214
• [Journal Article] Evidence of a Field-Induced Ordering inYbCo_2Zn_20 in a[ 111] Magnetic Field Y (2011)
  • Author(s): Shimura, T. Sakakibara, S. Yoshiuchi, F. Honda, R. Settai, and Y. Onuki
  • Journal Title: J. Phys. Soc. Jpn Volume: 80 Pages: 073707(1-4)
  • DOI: DOI:10.1143/JPSJ.80.073707
• [Journal Article] Low-Temperature Magnetization of the Metamagnetic Heavy Fermion CompoundYbIr_2Zn_20 (2011)
  • Author(s): Y. Shimura, T. Sakakibara, S. Yoshiuchi, F. Honda, R. Settai, and Y. Onuki
  • Journal Title: J. Phys. Soc. Jpn Volume: 80 Pages: SA051(1-3)
  • DOI: DOI:10.1143/JPSJS.80SA.SA051
• [Journal Article] Low Temperature Magnetic Properties ofPr(Cu, Ga)_13 with Orbitally Degenerate Ground (2011)
  • Author(s): State Y. Shimura, T. Sakakibara, K. Kuga, J. Y. Cho, and Julia Y. Chan
  • Journal Title: J. Phys. Soc. Jpn Volume: 80 Pages: SA072(1-3)
  • DOI: DOI:10.1143/JPSJS.80SA.SA072
• [Journal Article] Quantum Criticality Without Tuning in theMixed Valence Compoundβ-YbAlB_4 (2011)
  • Author(s): Y. Matsumoto, S. Nakatsuji, K. Kuga, Y. Karaki, N. Horie, Y. Shimura, T. Sakakibara, A. H. Nevidomskyy, and P. Coleman
  • Journal Title: Science Volume: 331 Pages: 316-319
  • DOI: DOI:10.1126/science.1197531
• [Journal Article] Absence of Meissner State and Robust Ferromagnetism in the Superconducting State of UCoGe : Possible Evidence of Spontaneous Vortex State (2010)
  • Author(s): K. Deguchi, E. Osaki, S. Ban, N. Tamura, Y. Simura, T. Sakakibara, Isamu Satoh, and Noriaki K. Sato
  • Journal Title: J. Phys. Soc. Jpn Volume: 79 Pages: 083708(1-4)
  • DOI: DOI:10.1143/JPSJ.79.083708
• [Journal Article] Low Temperature Magnetic Properties of Ce_3Pd_20Si_6 (2010)
  • Author(s): H. Mitamura, T. Tayama, T. Sakakibara, S. Tsuduku, G. Ano, I. Ishii, M. Akatsu, Y. Nemoto, T. Goto, A. Kikkawa, and H. Kitazawa
  • Journal Title: J. Phys. Soc. Jpn Volume: 79 Pages: 074712(1-6)
  • DOI: DOI:10.1143/JPSJ.79.074712
• [Journal Article] Time-reversal symmetry breaking and spontaneous Hall effect without magnetic dipole order (2010)
  • Author(s): Y. Machida, S. Nakatsuji, S. Onoda, T. Tayama and T. Sakakibara
  • Journal Title: Nature Volume: 463 Pages: 210-213
  • DOI: DOI:10.1038/nature08680
• [Journal Article] Unusual Low Temperature Magnetization of a CubicΓ_3 Non-Kramers Doublet Ground State Compound PrMg_3-Evidence of a Hybridization Effect (2009)
  • Author(s): T. Morie, T. Sakakibara, H. S. Suzuki, H. Tanida and S. Takagi
  • Journal Title: J. Phys. Soc. Jpn Volume: 78 Pages: 033705(1-4)
  • DOI: DOI:10.1143/JPSJ.78.033705
• [Journal Article] Scalar Order in PrFe_4P_12 Studied by Thermal Expansion and Magnetostriction (2009)
  • Author(s): T. Tayama, Y. Isobe, T. Sakakibara, H. Sugawara and H. Sato
  • Journal Title: J. Phys. Soc. J. Volume: 78 Pages: 044708(1-9)
  • DOI: DOI:10.1143/JPSJ.78.044708
• [Journal Article] Magnetization "Steps" on a Kagome Latticein Volborthite (2009)
  • Author(s): H. Yoshida, Y. Okamoto, T. Tayama, T. Sakakibara, M. Tokunaga, A. Matsuo, Y. Narumi, K. Kindo, M. Yoshida, M. Takigawaand Z. Hiroi
  • Journal Title: J. Phys. Soc. Jpn Volume: 78 Pages: 043704(1-4)
  • DOI: DOI:10.1143/JPSJ.78.043704
• [Journal Article] Magnetic-Field Induced Bose-Einstein Condensation of Magnons and Critical Behaviorin Interacting Spin Dimer System (2008)
  • Author(s): F. Yamada, T. Ono, H. Tanaka, G. Misguich, M. Oshikawa and T. Sakakibara
  • Journal Title: J. Phys. Soc. Jpn Volume: 77 Pages: 013701(1-4)
  • DOI: DOI:10.1143/JPSJ.77.01370
• [Journal Article] Successive phase transitions to antiferromagnetic and weak-ferromagnetic long-range orders in quasi-one-dimensional antiferromagnet Cu_3Mo_2O_9 (2008)
  • Author(s): T. Hamasaki, T. Ide, H. Kuroe, T. Sekine, M. Hase, I. Tsukada and T. Sakakibara
  • Journal Title: Phys. Rev Volume: 77 Pages: 134419(1-7)
  • DOI: DOI:10.1103/PhysRevB.77.134419
• [Journal Article] Superconductivity and quantum criticality inthe heavy-fermion systemβ-YbAlB_4 (2008)
  • Author(s): S. Nakatsuji, K. Kuga, Y. Machida, T. Tayama, T. Sakakibara, Y. Karaki, H. Ishimoto, S. Yonezawa, Y. Maeno, E. Pearson, G. G. Lonzarich, L. Balicas, H. Lee and Z. Fisk
  • Journal Title: Nature Physics Volume: 4 Pages: 603-607
  • DOI: DOI:10.1038/nphys1002
• [Presentation] PrV_2Al_20の極低温磁化と磁気相図 (2012)
  • Author(s): 志村恭通,大田健雄,榊原俊郎,酒井明人,中辻知
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-26
• [Presentation] S=1/2カゴメ格子反強磁性体Volborthite単結晶の極低温磁化測定 (2012)
  • Author(s): 榊原俊郎,三田村裕幸,山浦淳一,岡本佳比古,広井善二,吉田紘行,磯部雅朗
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 関西学院大学
  • Year and Date: 2012-03-25
• [Presentation] キャパシタンス式ファラデー法の高感度化及びYbAl_3C_3微結晶の磁化測定(2) (2011)
  • Author(s): 杉山友理,橘高俊一郎,志村恭通,榊原俊郎,松田沙織,落合明
  • Organizer: 日本物理学会2011年秋季大会
  • Place of Presentation: 富山大学
  • Year and Date: 2011-09-23
• [Presentation] RbFe(MoO_4)_2の磁場中誘電分極測定II (2011)
  • Author(s): 三田村裕幸,綿貫竜太,小野崎紀道,榊原俊郎,鈴木和也
  • Organizer: 日本物理学会第66回年次大会
  • Place of Presentation: 中止(新潟大)
  • Year and Date: 2011-03-26
• [Presentation] Zero-field quantum criticality in the valence fluctuating heavy fermion superconductorβ-YbAlB (2010)
  • Author(s): Yosuke Matsumoto, Satoru Nakatsuji, Kentaro Kuga, Yoshitomo Karaki, Naoki Horie, Yasuyuki Shimura, Toshiro Sakakibara, Andriy H. Nevidomskyy and Piers Coleman
  • Organizer: International Conference on Strongly Correlated Electron Systems(SCES 2010)
  • Place of Presentation: Santa Fe, USA
  • Year and Date: 2010-07-01
• [Presentation] Low temperature magnetic properties of Pr(Cu, Ga)_12. 85 (2010)
  • Author(s): Yasuyuki Shimura, Toshiro Sakakibara, Kentarou Kuga, Jung Young Choand Julia Y. Chan
  • Organizer: International Conference on Strongly Correlated Electron Systems(SCES 2010)
  • Place of Presentation: Santa Fe, USA
  • Year and Date: 2010-06-29
• [Presentation] S=5/2擬二次元三角格子反強磁性体Rb_4Mn(MoO_4)_3における磁気相図とその定量的考察 (2009)
  • Author(s): 石井梨恵子,中辻知,田中宗,徳永将史,榊原俊郎
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-28
• [Presentation] 重い電子系β-YbAlB_4の零磁場量子臨界点と非フェルミ液体フェルミ液体クロスオーバー (2009)
  • Author(s): 松本洋介,久我健太郎,柄木良友,冨田崇弘,町田洋,榊原俊郎,志村恭通,中辻知
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-28
• [Presentation] 強磁性超伝導体UCoGeの低温磁化測定 (2009)
  • Author(s): 出口和彦,尾崎英祐,坂聖光,田村暢之,佐藤憲昭,志村恭通,榊原俊郎,本間佳哉,塩川佳伸,佐藤伊佐務,石田憲二
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学
  • Year and Date: 2009-09-25
• [Presentation] Magnetic Properties of Ce_3Pd_20Si_6 at Very Low Temperatures (2009)
  • Author(s): H. Mitamura, T. Sakuraba, T. Tayama, T. Sakakibara, S. Tsuduku, G. Ano, I. Ishii, M, Akatsu, Y. Nemoto, T. Goto, H. Kitazawa
  • Organizer: The International Conference on Magnetism ICM2009
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-28
• [Presentation] Low-Temperature Magnetization of PrMg_3 with aΓ_3 non-Kramers Doublet Ground State (2009)
  • Author(s): T. Sakakibara, T. Morie, H. S. Suzuki, H. Tanida, S. Takagi, T. Onimaru
  • Organizer: The International Conference on Magnetism ICM2009
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 2009-07-27
• [Presentation] Ce_3Pd_20Si_6の極低温磁化 (2008)
  • Author(s): 三田村裕幸,桜庭孝明,田山孝,榊原俊郎,都竹星志,阿野元貴,石井勲,赤津光洋,根本祐一,後藤輝孝,北澤英明
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 岩手大学
  • Year and Date: 2008-09-21