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Bose-Einstein condensation in quantum spin system and supercurrent

Research Project

Project/Area Number 26247058
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionTokyo Institute of Technology

Principal Investigator

Hidekazu Tanaka  東京工業大学, 理学院, 教授 (80188325)

Co-Investigator(Kenkyū-buntansha) 栗田 伸之  東京工業大学, 理工学研究科, 助教 (80566737)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥42,770,000 (Direct Cost: ¥32,900,000、Indirect Cost: ¥9,870,000)
Fiscal Year 2016: ¥7,150,000 (Direct Cost: ¥5,500,000、Indirect Cost: ¥1,650,000)
Fiscal Year 2015: ¥7,020,000 (Direct Cost: ¥5,400,000、Indirect Cost: ¥1,620,000)
Fiscal Year 2014: ¥28,600,000 (Direct Cost: ¥22,000,000、Indirect Cost: ¥6,600,000)
Keywords量子スピン系 / マグノン / ボース・アインシュタイン凝縮 / スーパーカレント / マグノンの結晶化 / 強磁場 / 新物質 / Bose-Einstein凝縮 / スピンギャップ磁性体 / スピンダイマー磁性体 / 中性子散乱 / スピンスーパーカレント / 結晶化 / スピンダイマー系 / フラストレーション / トリプレットの結晶化 / キタエフ模型
Outline of Final Research Achievements

We synthesized new dimerized magnet Ba2CoSi2O6Cl2 and determined its crystal structure. From high-magnetic field magnetization measurements, we observed quantum crystallization of magnons. The magnon crystallization is the opposite macroscopic quantum phenomenon to Bose-Einstein condensation (BEC) of magnons, and thus Ba2CoSi2O6Cl2 is a valuable experimental example. We also synthesized dimerized magnet Ba2CuSi2O6Cl2 that has a similar crystal structure as Ba2CoSi2O6Cl2 and elucidated its two-dimensional (2D) quantum magnetic properties. We investigated phase transition of quasi-2D ferromagnet K2CuF4 in the magnetic field, and verified the universality of quasi-2D BEC. We developed a new method to suppress magnetic torque in magnetic field using Ba2CoSi2O6Cl2 with large and anisotropic Van Vleck paramagnetism. Using this method, we succeeded in precise measurement of specific heat of CsFeBr3 in magnetic fields down to 100 mK, and verified the universality of 3D magnon BEC.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (53 results)

All 2017 2016 2015 2014 Other

All Int'l Joint Research (15 results) Journal Article (22 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 22 results,  Acknowledgement Compliant: 10 results,  Open Access: 5 results) Presentation (14 results) (of which Int'l Joint Research: 3 results,  Invited: 6 results) Remarks (2 results)

  • [Int'l Joint Research] National High Magnetic Field Laboratory/University of California/Lawrence Livermore National Laboratory(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] IFW Dresden/Helmholtz-Zentrum Berlin(ドイツ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Sorbonne University/Aix-Marseille University/Institut Laue-Langevin(フランス)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Ecole Polytechnique Federale de Lausanne/Paul Scherrer Institut(スイス)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Mahidol University(タイ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] Paul Scherrer Institute(スイス)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] University of Birmingham(英国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] National High Magnetic Field Laboratory(米国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Sorbonne University/Aix-Marseille University(フランス)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Bragg Institure, ANSTO(オーストラリア)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] Mahidol University(タイ)

    • Related Report
      2014 Annual Research Report
  • [Int'l Joint Research] National High Magnetic Field Laboratory(米国)

    • Related Report
      2014 Annual Research Report
  • [Int'l Joint Research] Bragg Institute, ANSTO(オーストラリア)

    • Related Report
      2014 Annual Research Report
  • [Journal Article] Magnetic excitations and electronic interactions in Sr2CuTeO6: a spin-1/2 square lattice Heisenberg antiferromagnet2016

    • Author(s)
      P. Babkevich, V. M. Katukuri, B. Fak, S. Rols, T. Fennell, D. Pajic, H. Tanaka, T. Pardini, R. R. P. Singh, A. Mitrushchenkov, O. V. Yazyev and H. M. Ronnow
    • Journal Title

      Phys. Rev. Lett.

      Volume: 117 Issue: 23

    • DOI

      10.1103/physrevlett.117.237203

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Ferroelectricity by Bose-Einstein condensation in a quantum magnet2016

    • Author(s)
      S. Kimura, K. Kakihara, Y. Sawada, K. Watanabe, M. Matsumoto, M. Hagiwara and H. Tanaka
    • Journal Title

      Nat. Commun.

      Volume: 7

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Quasi-Two-Dimensional Bose-Einstein Condensation of Spin Triplets in Dimerized Quantum Magnet Ba2CuSi2O6Cl22016

    • Author(s)
      M. Okada, H. Tanaka, N. Kurita, K. Johmoto, H. Uekusa, A Miyake, M. Tokunaga, S. Nishimoto, M. Nakamura, M. Jaime, G. Radtke and A. Saul
    • Journal Title

      Phys. Rev. B

      Volume: 94 Issue: 9

    • DOI

      10.1103/physrevb.94.094421

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Magnetic-field- and pressure-induced quantum phase transition in CsFeCl3 proved via magnetization measurements2016

    • Author(s)
      N. Kurita and H. Tanaka
    • Journal Title

      Phys. Rev. B

      Volume: 94 Issue: 10

    • DOI

      10.1103/physrevb.94.104409

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Magnetic Structure of an S=1/2 Quasi-Two-Dimensional Square-Lattice Heisenberg Antiferromagnet Sr2CuTeO62016

    • Author(s)
      K. Koga, N. Kurita, M. Avdeev, S. Danilkin, T. J. Sato, H. Tanaka
    • Journal Title

      Physical Review B

      Volume: 93 Issue: 5

    • DOI

      10.1103/physrevb.93.054426

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Field-driven successive phase transitions in the quasi-two-dimensional frustrated antiferromagnet Ba2CoTeO6 and highly degenerate classical ground states2016

    • Author(s)
      P. Chanlert, N. Kurita, H. Tanaka, D. Goto, A. Matsuo, and K. Kindo
    • Journal Title

      Physical Review B

      Volume: 93 Issue: 9

    • DOI

      10.1103/physrevb.93.094420

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Quantum phase transition between disordered and ordered states in the spin-1/2 kagome lattice antiferromagnet (Rb1-xCsx)2Cu3SnF122015

    • Author(s)
      K. Katayama, N. Kurita, H. Tanaka
    • Journal Title

      Physical Review B

      Volume: 91 Issue: 21

    • DOI

      10.1103/physrevb.91.214429

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Development of multi-frequency ESR system for high-pressure measurements up to 2.5 GPa2015

    • Author(s)
      T. Sakurai, K. Fujimoto, R. Matsui, K. Kawasaki, S. Okubo, H. Ohta, K. Matsubayashi, Y. Uwatoko, H. Tanaka
    • Journal Title

      J. Magn. Reson.

      Volume: 259 Pages: 108-113

    • DOI

      10.1016/j.jmr.2015.08.005

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Magnetic-Field-Induced Polar Phase in Chiral Magnet CsCuCl32015

    • Author(s)
      A. Miyake, J. Shibuya, M. Akaki, H. Tanaka, and M. Tokunaga
    • Journal Title

      Physical Review B

      Volume: 92 Issue: 10

    • DOI

      10.1103/physrevb.92.100406

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Spinon, soliton and breather in the spin-1/2 antiferromagnetic chain KCuGaF62015

    • Author(s)
      I. Umegaki, H. Tanaka, N. Kurita, T. Ono, M. Laver, C. Niedermayer, C. Rüegg, S. Ohira-Kawamura, K. Nakajima, K. Kakurai
    • Journal Title

      Physical Review B

      Volume: 92 Issue: 17

    • DOI

      10.1103/physrevb.92.174412

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] on Substitution Effect on the Distorted Kagome Lattice of A2Cu3SnF122015

    • Author(s)
      S. Sharmin, T. Ono, and H. Tanaka
    • Journal Title

      JPS Conf. Proc.

      Volume: 4

    • DOI

      10.7566/jpscp.4.011008

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Successive magnetic phase transitions in α-RuCl3 : XY-like frustrated magnet on the honeycomb lattice2015

    • Author(s)
      Yumi Kubota, Hidekazu Tanaka, Toshio Ono, Yasuo Narumi, and Koichi Kindo
    • Journal Title

      Physical Review B

      Volume: 91 Issue: 9

    • DOI

      10.1103/physrevb.91.094422

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Crystallization of Magnons in an Almost Perfectly Frustrated Quantum Magnet2014

    • Author(s)
      Hidekazu Tanaka
    • Journal Title

      AAPPS Bulletin

      Volume: 24 Pages: 14-16

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 籠目格子反強磁性体での特異な量子効果―磁気励起に現れる負の量子再規格化―2014

    • Author(s)
      小野俊雄,Kittiwit Matan,南部雄亮,佐藤卓,田中秀数
    • Journal Title

      固体物理

      Volume: 49 Pages: 7-15

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Strong Suppression of Magnetic Ordering in a Frustrated S=1/2 Square-Lattice Heisenberg Antiferromagnet Sr2CuTeO62014

    • Author(s)
      K. Koga, N. Kurita, H. Tanaka
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 83 Issue: 11 Pages: 115001-115001

    • DOI

      10.7566/jpsj.83.115001

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Almost Perfect Frustration in the Dimer Magnet Ba2CoSi2O6Cl22014

    • Author(s)
      H. Tanaka, N. Kurita, M. Okada, E. Kunihiro, Y. Shirata, K. Fujii, H. Uekusa, A. Matsuo, K. Kindo, H. Nojiri
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 83 Issue: 10 Pages: 103701-103701

    • DOI

      10.7566/jpsj.83.103701

    • NAID

      210000133280

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Magnetic phase diagram of the S=1/2 triangular-lattice Heisenberg antiferromagnet Ba3CoNb2O92014

    • Author(s)
      K. Yokota, N. Kurita, H. Tanaka
    • Journal Title

      Phys. Rev. B 90 (2014) 014403

      Volume: 90 Issue: 1

    • DOI

      10.1103/physrevb.90.014403

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Gradual evolution in spin dynamics of TlCu1-xMgxCl3 probed by muon-spin- relaxation (muSR) technique2014

    • Author(s)
      Takao Suzuki, Isao Watanabe, Fumiko Yamada, Yasuyuki Ishii, Kazuki Ohishi, Takayuki Goto, and Hidekazu Tanaka
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 502 Pages: 0120411-0120415

    • DOI

      10.1088/1742-6596/502/1/012041

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] µSR study on quantum spin system NH4CuCl32014

    • Author(s)
      K Matsui, T Suzuki, A Oosawa, M Fujisawa. K Yoshizawa, H Tanaka, T Goto, P K Biswas, A Amato, I Watanabe
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 551 Pages: 0120071-0120075

    • DOI

      10.1088/1742-6596/551/1/012007

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] NMR Study On Kagome-Lattice Antiferromagnet Cs2Mn3LiF122014

    • Author(s)
      S Moriya, Y Usui, H Tanaka, K Matsui, Y Mori, H Kuroe, T Sasaki and T Goto
    • Journal Title

      Journal of Physics: Conference Series

      Volume: 568 Issue: 4 Pages: 0420081-0420085

    • DOI

      10.1088/1742-6596/568/4/042008

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ground State of the Spin-1/2 Chain of Green Dioptase at High Fields2014

    • Author(s)
      K. Matsui, M. Fujisawa, K. Hagiwara, Y. Hoshino, T. Goto, T. Sasaki, H. Tanaka, S. Okubo and H. Ohta
    • Journal Title

      JPS Conf. Proc.

      Volume: 2

    • DOI

      10.7566/jpscp.3.014011

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Novel multiferroic phase of CsCuCl3 in High Magnetic Fields2014

    • Author(s)
      J. Shibuya, M. Akaki, Y. Kohama, A. Miyake, M. Tokunaga, and H. Tanaka
    • Journal Title

      J. Phys.: Conf. Proc. Ser.

      Volume: 568 Issue: 4 Pages: 042030-042030

    • DOI

      10.1088/1742-6596/568/4/042030

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] フラストレーションの強いスピンダイマー磁性体Ba2CoSi2O6Cl2における強磁場高周波ESR測定2017

    • Author(s)
      栗田伸之, 赤木暢, 奥谷顕, 萩原政幸, 田中秀数
    • Organizer
      日本物理学会第72回年次大会
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2017-03-17
    • Related Report
      2016 Annual Research Report
  • [Presentation] 基底一重項磁性体CsFeBr3の極低温磁気相図と量子臨界現象2016

    • Author(s)
      白澤一樹,栗田伸之,田中秀数
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      金沢大学角間キャンパス
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] フラストレーションの強いS=1/2スピンダイマー系Ba2CoSi2O6Cl2における局在励起2016

    • Author(s)
      栗田伸之,河村聖子,中島健次,田中秀数
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      金沢大学角間キャンパス
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] フラストレーションの強いS=1スピンダイマー系Ba2NiSi2O6Cl2の量子磁化過程2016

    • Author(s)
      小池暢人,栗田伸之,田中秀数,上本紘平,植草秀裕,Mingyue Ruan,野尻浩之,松尾晶,金道浩一
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      金沢大学角間キャンパス
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] 擬2次元スピンダイマー系Ba2CuSi2O6Cl2における高周波強磁場ESR2016

    • Author(s)
      田中公彦,小池暢人,栗田伸之,須藤紘夢,野尻浩之,田中秀数
    • Organizer
      日本物理学会2016年秋季大会
    • Place of Presentation
      金沢大学角間キャンパス
    • Year and Date
      2016-09-13
    • Related Report
      2016 Annual Research Report
  • [Presentation] XY-like frustrated magnetic phase transitions in α-RuCl32016

    • Author(s)
      H. Tanaka
    • Organizer
      American Physical Society March Meeting
    • Place of Presentation
      Baltimore, Maryland, USA
    • Year and Date
      2016-03-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Field-Induced Successive Phase Transitions in Quasi-Two-Dimensional Frustrated Antiferromagnet Ba2CoTeO6 and Highly Degenerated Classical Ground States2016

    • Author(s)
      H. Tanaka
    • Organizer
      International Conference Physical Phenomena in High Magnetic Fields (PPHMF-8)
    • Place of Presentation
      Tallahassee, Florida, USA
    • Year and Date
      2016-01-06
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Field-Induced Successive Phase Transitions in the Spin-1/2 Frustrated Antiferromagnet Ba2CoTeO6 and Highly Degenerate Classical Ground States2015

    • Author(s)
      田中秀数
    • Organizer
      東京大学物性研究所短期研究会「スピン系物理の深化と最前線」
    • Place of Presentation
      東京大学物性研究所
    • Year and Date
      2015-11-16
    • Related Report
      2015 Annual Research Report
  • [Presentation] Quantum Crystallization of Magnons in Almost Perfectly Frustrated Dimer Magnets Ba2MSi2O6Cl2 (M=Co and Ni)2015

    • Author(s)
      H. Tanaka, N. Kurita, M. Okada, M. Koike, K. Fujii, K. Johmoto, H. Uekusa, A. Matsuo, K. Kindo and H. Nojiri
    • Organizer
      International Conference on Research in High Magnetic Fields
    • Place of Presentation
      Grenoble, France
    • Year and Date
      2015-07-01
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] フラストレーションと強磁場が生む量子現象2015

    • Author(s)
      田中秀数
    • Organizer
      早稲田大学高等研究所Top Runners’ Lecture Collection of Science「磁性体研究の最前線」
    • Place of Presentation
      早稲田大学西早稲田キャンパス
    • Year and Date
      2015-04-30
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] 様々な空間構造を持つ量子スピン系に関する話題2015

    • Author(s)
      田中秀数
    • Organizer
      Workshop: CROSSroads of Users and J-PARC第14回「量子スピン系とフラストレーション」
    • Place of Presentation
      いばらき量子ビーム研究センター
    • Year and Date
      2015-02-03
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] 強磁場中で現れるスピン系の量子多体効果と量子相転移2014

    • Author(s)
      田中秀数
    • Organizer
      強磁場科学研究会「強磁場が切り拓く物質科学のフロンティア」
    • Place of Presentation
      大阪大学豊中キャンパス
    • Year and Date
      2014-12-04
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] スピンダイマー磁性体 Ba2CoSi2O6Cl2 における殆ど完全なフラストレーション2014

    • Author(s)
      田中秀数,栗田伸之,岡田真喜子,國弘英二,白田雄高,藤井孝太郎,植草秀裕,松尾晶,金道浩一,野尻浩之
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      中部大学春日井キャンパス
    • Year and Date
      2014-09-07
    • Related Report
      2014 Annual Research Report
  • [Presentation] スピンダイマー系の量子物理2014

    • Author(s)
      田中秀数
    • Organizer
      シンポジウム「量子スピン系の物理」
    • Place of Presentation
      中央大学理工学部後楽園キャンパス
    • Year and Date
      2014-05-17
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Remarks] 東京工業大学理学院物理学系田中研究室

    • URL

      http://www.lee.phys.titech.ac.jp/index.html

    • Related Report
      2016 Annual Research Report
  • [Remarks] 東京工業大学大学院理工学研究科物性物理学専攻 田中研究室

    • URL

      http://www.lee.phys.titech.ac.jp/index.html

    • Related Report
      2015 Annual Research Report 2014 Annual Research Report

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Published: 2014-04-04   Modified: 2022-01-31  

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