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2011 Fiscal Year Final Research Report

Methods of characterizing magnetic multi-polar and spin-liquid phases

Research Project

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Project/Area Number 21740295
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Mathematical physics/Fundamental condensed matter physics
Research InstitutionAoyama Gakuin University (2010-2011)
The Institute of Physical and Chemical Research (2009)

Principal Investigator

SATO Masahiro  青山学院大学, 理工学部, 助教 (90425570)

Project Period (FY) 2009 – 2011
Keywords物性基礎論
Research Abstract

The purpose of this project is to theoretically solvethe following two questions : What are the effective ways of characterizing magnetic multi-polarordered statesand disordered states such as spin liquids? And what kinds of systems are suitable for the realization of these novel states? To this end, I have focused on realistic models for magnets and cold atom systems. In particular, the result for frustrated spin-1/2 J1-J2 chains is most important inthis project. We have accurately determined the rich ground-state phase diagram of the J1-J2 chain with vector-chiral and new Haldane-dimer phases. Wehave also shown that thetemperature and field dependence of theNMR realizationrate and the field dependence of the peak positionof the neutron scattering spectrum can be effectively usedto characterizethe multi-polar liquid phases induced by external magnetic field in the J1-J2 chains.

  • Research Products

    (36 results)

All 2012 2011 2010 2009

All Journal Article (9 results) (of which Peer Reviewed: 9 results) Presentation (27 results)

  • [Journal Article] Spin-chirality separation and S3-symmetry breakings in the magnetization plateau of the quantum spin tube2012

    • Author(s)
      Kouichi Okunishi, Masahiro Sato, Toru Sakai, Kiyomi Okamoto, and Chigak. Itoi
    • Journal Title

      Phys. Rev. B

      Volume: 85 Pages: 054416

    • DOI

      DOI:10.1103/PhysRevB.85.054416

    • Peer Reviewed
  • [Journal Article] Competing phases in spin-1/2 J_1-J_2chain with easy-plane anisotropy2011

    • Author(s)
      Masahiro Sato, Shunsuke Furukawa, Shigeki Onoda, and Akira Furusaki
    • Journal Title

      Mod. Phys. Lett. B

      Volume: 25 Pages: 901

    • DOI

      DOI:10.1142/S0217984911026607

    • Peer Reviewed
  • [Journal Article] Chiral Order and Electromagnetic Dynamics in One-Dimensional Multiferroic Cuprates2010

    • Author(s)
      Shunsuke Furukawa, Masahiro Sato, and Shigeki Onoda
    • Journal Title

      Phys. Rev. Lett

      Volume: 105 Pages: 257205

    • DOI

      DOI:10.1103/PhysRevLett.105.257205

    • Peer Reviewed
  • [Journal Article] Field and temperature dependence of the NMR relaxation rate in the magnetic quadrupolar liquid phase of spin-1/2 frustrated ferromagnetic chains2010

    • Author(s)
      Masahiro Sato, Toshiya Hikihara, and Tsutomu Momoi
    • Journal Title

      Phys. Rev. B

      Volume: 83 Pages: 064405

    • DOI

      DOI:10.1103/PhysRevB.83.064405

    • Peer Reviewed
  • [Journal Article] Coefficients of bosonized dimer operators in spin-1/2 XXZ chains and their applications2010

    • Author(s)
      Shintaro Takayoshi and Masahiro Sato
    • Journal Title

      Phys. Rev. B

      Volume: 82 Pages: 214420

    • DOI

      DOI:10.1103/PhysRevB.82.214420

    • Peer Reviewed
  • [Journal Article] Quantum spin nanotubes-frustration, competing orders and criticalities2010

    • Author(s)
      Toru Sakai, Masahiro Sato, Kouichi Okunishi, Kiyomi Okamoto, Chigak Itoi
    • Journal Title

      J. Phys.: Condens. Matter

      Volume: 22 Pages: 403201

    • DOI

      DOI:10.1088/0953-8984/22/40/403201

    • Peer Reviewed
  • [Journal Article] Unconventional Neel and dimer orders in a spin-1/2 frustrated ferromagnetic chain with easy-plane anisotropy2010

    • Author(s)
      Shunsuke Furukawa, Masahiro Sato, and Akira Furusaki
    • Journal Title

      Phys. Rev. B

      Volume: 81 Pages: 094430

    • DOI

      DOI:10.1103/PhysRevB.81.094430

    • Peer Reviewed
  • [Journal Article] Spontaneous population imbalance in two-component Bose and Fermigases2010

    • Author(s)
      Shintaro Takayoshi, Masahiro Sato and Shunsuke Furukawa
    • Journal Title

      Phys. Rev. A

      Volume: 81 Pages: 053606

    • DOI

      DOI:10.1103/PhysRevA.81.053606

    • Peer Reviewed
  • [Journal Article] Theory of the Optical Conductivity of Spin Liquid States in One-Dimensional Mott Insulators2009

    • Author(s)
      Hosho Katsura, Masahiro Sato, Takashi Furuta, Naoto Nagaosa
    • Journal Title

      Phys. Rev. Lett

      Volume: 103 Pages: 177402

    • DOI

      DOI:10.1103/PhysRevLett.103.177402

    • Peer Reviewed
  • [Presentation] Edge state and its stability of 2D antiferromagnetic quantum spin systems2012

    • Author(s)
      Takafumi Suzuki and Masahiro Sato
    • Organizer
      APSMarch Meeting
    • Place of Presentation
      Boston Convention Center, Boston, USA
    • Year and Date
      2012-02-29
  • [Presentation] Competition between SpinNematic and Spin Density Wave Orders inSpatially Anisotropic Frustrated Magnets in Magnetic Fields2012

    • Author(s)
      Masahiro Sato, Toshiya Hikihara and Tsutomu Momoi
    • Organizer
      APS March Meeting
    • Place of Presentation
      Boston Convention Center, Boston, USA
    • Year and Date
      2012-02-28
  • [Presentation] New phases induced by four-spin interaction in stacked triangular-lattice antiferromagnets in magnetic field2011

    • Author(s)
      Shintaro Takayoshi and Masahiro Sato
    • Organizer
      Novel Quantum States in Condensed Matter 2011(NQS2011)
    • Place of Presentation
      Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto
    • Year and Date
      2011-11-14
  • [Presentation] Edge states and their stability of 2D antiferromagnets Edge states and their stability of 2D antiferromagnets2011

    • Author(s)
      Takafumi Suzuki and Masahiro Sato
    • Organizer
      Novel Quantum States in Condensed Matter 2011(NQS2011)
    • Place of Presentation
      Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto
    • Year and Date
      2011-11-14
  • [Presentation] Theory for Raman scatteringin 1D spin-1/2 antiferromagnets : Effects of frustration and perturbations on the Heisenberg model2011

    • Author(s)
      Masahiro Sato
    • Organizer
      Novel Quantum States in Condensed Matter 2011(NQS2011)
    • Place of Presentation
      Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto
    • Year and Date
      2011-11-14
  • [Presentation] Effect of Four-Spin Interactions on Phase Diagram of Classical Heisenberg Antiferromagnets on Stacked Triangular Lattice Under Magnetic Field2011

    • Author(s)
      Shintaro Takayoshi and Masahiro Sato
    • Organizer
      SCES2011
    • Place of Presentation
      University of Cambridge, Cambridge, UK
    • Year and Date
      2011-08-02
  • [Presentation] Theory of Raman Scattering Spectrum for One-Dimensional Quantum Magnets2011

    • Author(s)
      Masahiro Sato, Hosho Katsura and Naoto Nagaosa
    • Organizer
      SCES2011
    • Place of Presentation
      University of Cambridge, Cambridge, UK
    • Year and Date
      2011-08-02
  • [Presentation] Phase Diagram of Classical Heisenberg Antiferromagnets with Four-Spin Interactions on Stacked Triangular Lattice under Magnetic field2011

    • Author(s)
      Shintaro Takayoshi and Masahiro Sato
    • Organizer
      APS March Meeting
    • Place of Presentation
      Dallas, USA
    • Year and Date
      2011-03-23
  • [Presentation] Theory of Raman Scattering in One-dimensional Quantum Magnets2011

    • Author(s)
      Masahiro Sato, Hosho Katsura, and Naoto Nagaosa
    • Organizer
      APS March Meeting
    • Place of Presentation
      Dallas, USA
    • Year and Date
      2011-03-21
  • [Presentation] Spin Dynamics in field-induced quadrupolar and octupolar liquid statesin spin-1/2 frustrated chains2011

    • Author(s)
      Masahiro Sato, Toshiya Hikihara, and Tsutomu Momoi
    • Organizer
      International Conference on Frustration in Condensed Matter(ICFCM)
    • Place of Presentation
      Sendai
    • Year and Date
      2011-01-11
  • [Presentation] Seven competing phases in the spin-1/2 frustrated J1-J2 chain with easy-plane anisotropy2011

    • Author(s)
      Masahiro Sato, Shunsuke Furukawa, Shigeki Onoda and Akira Furusaki
    • Organizer
      International Conference on Frustration in Condensed Matter(ICFCM)
    • Place of Presentation
      Sendai
    • Year and Date
      2011-01-11
  • [Presentation] Successive Neel and dimer orderings in spin-1/2 ferromagnetic frustrated chain with easy-plane anisotropy2010

    • Author(s)
      Masahiro Sato, Shunsuke Furukawa and Akira Furusaki
    • Organizer
      Highly Frustrated Magnetism 2010
    • Place of Presentation
      Johns-Hopkins Univ. Baltimore, USA
    • Year and Date
      20100803-05
  • [Presentation] NMR relaxation rate and dynamical structure factors in field-induced magnetic multi-polar phases of spin-1/2 frustrated ferromagnetic chains2010

    • Author(s)
      Masahiro Sato, Toshiya Hikihara, Tsutomu Momoi and Akira Furusaki, Johns-Hopkins
    • Organizer
      Highly Frustrated Magnetism 2010
    • Place of Presentation
      Baltimore, USA
    • Year and Date
      20100803-05
  • [Presentation] Stability of collinear and coplanar phases in stacked spatially anisotropic triangular antiferromagnets under a magnetic field2010

    • Author(s)
      Masahiro Sato and Norikazu Todoroki, Johns-Hopkins
    • Organizer
      Highly Frustrated Magnetism 2010
    • Place of Presentation
      Baltimore, USA
    • Year and Date
      20100803-05
  • [Presentation] Ferromagnetic transition in one-dimensional spin-1/2 Bose and Fermi gases2010

    • Author(s)
      Masahiro Sato, Shintaro Takayoshi and Shunsuke Furukawa
    • Organizer
      Quantum Matter in Low Dimensions : Opportunities and Challenges
    • Place of Presentation
      Albanova University Center, Stockholm, Sweden
    • Year and Date
      2010-09-07
  • [Presentation] Spin dynamics in multipolar phases of one-dimensional quantum frustrated ferromagnet2010

    • Author(s)
      Masahiro Sato, Toshiya Hikihara, Tsutomu Momoi and Akira Furusaki
    • Organizer
      Quantum Matter in Low Dimensions : Opportunities and Challenges
    • Place of Presentation
      Albanova University Center, Stockholm, Sweden
    • Year and Date
      2010-09-06
  • [Presentation] Phase diagram and competing orders of stacked spatially anisotropic triangular Heisenberg antiferromagnets in magnetic field2010

    • Author(s)
      Masahiro Sato and Norikazu Todoroki
    • Organizer
      The International Conference on Frustrated Spin Systems, Cold Atoms, Nanomaterials : Satellite Conference of Stat Phys24
    • Place of Presentation
      Hanoi, Vietnam
    • Year and Date
      2010-07-15
  • [Presentation] Determination of coefficients of bosonized dimer operators in spin-1/2 antiferromagnetic chains and their application2010

    • Author(s)
      Shintaro Takayoshi and Masahiro Sato
    • Organizer
      The International Conference on Frustrated Spin Systems, Cold Atoms, Nanomaterials : Satellite Conference of Stat Phys24
    • Place of Presentation
      Hanoi, Vietnam
    • Year and Date
      2010-07-15
  • [Presentation] Successive transitions between Neel and dimer phases in spin-1/2 ferromagnetic frustrated chain with easy-plane anisotropy2010

    • Author(s)
      Masahiro Sato, Shunsuke Furukawa and Akira Furusaki
    • Organizer
      The International Conference on Frustrated Spin Systems, Cold Atoms, Nanomaterials : Satellite Conference of Stat Phys24
    • Place of Presentation
      Hanoi, Vietnam
    • Year and Date
      2010-07-15
  • [Presentation] Ferromagnetism in spin-1/2 Bose and Fermi gases confined by elongated potential2010

    • Author(s)
      Shintaro Takayoshi, Masahiro Sato and Shunsuke Furukawa
    • Organizer
      APS March meeting
    • Place of Presentation
      Portland, USA
    • Year and Date
      2010-03-19
  • [Presentation] Field-induced quantum phase transitions of the asymmetric three-leg spin tube2010

    • Author(s)
      Toru Sakai, Masahiro Sato, Kouichi Okunishi, Kiyomi Okamoto, Chigak Itoi
    • Organizer
      APS March meeting
    • Place of Presentation
      Portland, USA
    • Year and Date
      2010-03-16
  • [Presentation] Characterization of multipolar liquid phases in frustrated spin chains from NMR relaxation rate2010

    • Author(s)
      Masahiro Sato, Toshiya Hikihara, Tsutomu Momoi, Akira Furusaki
    • Organizer
      APS March meeting
    • Place of Presentation
      Portland, USA
    • Year and Date
      2010-03-16
  • [Presentation] Ferromagnetic state and correlation functions in spin-1/2 Fermi and Bose gases2010

    • Author(s)
      Shintaro Takayoshi, Masahiro Sato and Shunsuke Furukawa
    • Organizer
      International Symposium on Physics of New Quantum Phases in Superclean Materials(PSM2010)
    • Place of Presentation
      Yokohama, Kanagawa
    • Year and Date
      2010-03-01
  • [Presentation] How to detect magnetic multipolar liquid phases in spin-1/2 frustrated ferromegnetic chains2010

    • Author(s)
      Masahiro Sato, Toshiya Hikihara, Tsutomu Momoi, and Akira Furusaki
    • Organizer
      International Symposium on Physics of New Quantum Phases in Superclean Materials(PSM2010)
    • Place of Presentation
      Yokohama, Kanagawa
    • Year and Date
      2010-03-01
  • [Presentation] Field and temperature dependence of NMR relaxation rate for multi-polar liquid phases in frustrated spin chains2010

    • Author(s)
      Masahiro Sato
    • Organizer
      Magnetic resonance in highly frustrated magnetic systems(HFMR2010)
    • Place of Presentation
      Kranjska Gora, Slovenia
    • Year and Date
      2010-02-01
  • [Presentation] Chiral order and novel electromagnetic excitations in quasione-dimensional spin-1/2 multiferroics2009

    • Author(s)
      Masahiro Sato, Shunsuke Furukawa and Shigeki Onoda
    • Organizer
      RIKEN Workshop on "Emergent Phenomena of Correlated Materials"
    • Place of Presentation
      RIKEN, Wako, Saitama
    • Year and Date
      2009-12-03
  • [Presentation] Quantum phase transition to ferromagnetic liquid in spinful Bose and Fermi gases2009

    • Author(s)
      Masahiro Sato, Shintaro Takayoshi and Shunsuke Furukawa
    • Organizer
      RIKEN Workshop on" Emergent Phenomena of Correlated Materials"
    • Place of Presentation
      RIKEN, Wako, Saitama
    • Year and Date
      2009-12-03

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Published: 2013-07-31  

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