Neutron Scattering Investigation on Quantum Spin System SrCu_2(BO_3)_2(Frustrated Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)

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概要

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• In this paper we would like to review the zero field inelastic neutron scattering results obtained by using both the thermal and cold neutron triple axis instrument. The first single triplet state at around 3 meV is split due to the Dzyaloshinski-Moriya (DM) inter-dimer interaction with both the out-of-plane and in-plane components. The splitting between the S_z=±1 states is of the order of 0.3 meV. The two triplets bound states also form a very flat bands at 4.9, 5.5 and 6.3 meV with finite line width of the order and/or twice of the DM splitting. Finally the higher energy range up to 13 meV can be also characterized by three rather broad, but flat bands at around 8, 10 and 12 meV with the line width roughly three times the DM splitting. These excitations can be probably assigned to three and more triplets bound state excitations.

• 理論物理学刊行会の論文
• 2005-10-31

著者

• KAGEYAMA Hiroshi

  Department of Chemistry, Graduate School of Science, Kyoto University

• UEDA Yutaka

  Institute for Solid State Physics, University of Tokyo

• 陰山 洋

  Department Of Chemistry Graduate School Of Science Kyoto University

• Nishi Masakazu

  Neutron Scattering Laboratory Issp University Of Tokyo

• Nishii M

  Institute For Solid State Physics University Of Tokyo

• Nishi M

  Neutron Scattering Laboratory Issp University Of Tokyo

• Nishi Masakazu

  Neutron Scattering Laboratory Institute For Solid State Physics The University Of Tokyo

• Nishi Masakazu

  Univ. Tokyo Chiba Jpn

• Nishi Masakazu

  Institute For Solid State Phrsics University Of Tokyo

• Nishi Masakazu

  Issp University Of Tokyo

• KAKURAI Kazuhisa

  Advanced Science Research Center, Japan Atomic Energy Research Institute (JAERI)

• KAKURAI Kazuhisa

  Japan Atomic Energy Agency

• NUKUI Katsuyuki

  Neutron Science Laboratory, Institute for Solid State Physics, The University of Tokyo

• ASO Naofumi

  Neutron Science Laboratory, Institute for Solid State Physics, The University of Tokyo

• KADOWAKI Hiroaki

  Department of Physics, Tokyo Metropolitan University

• REGNAULT L.

  DRFMC-SPSMS

• CEPAS O.

  Insitut Laue Langevin

• Ueda Yutaka

  Institute For Solid State Physics University Of Tokyo

• Nishi Masakazu

  Neutron Scattering Laboratory I. S. S. P. University Of Tokyo

• Nishi Masakazu

  Neutron Scattering Laboratory Issp The University Of Tokyo

• Kageyama Hiroshi

  Department Of Applied Chemistry Faculty Of Engineering Osaka University

• Kodama Katsuaki

  Department Of Physics Division Of Material Science Nagoya University:crest Japan Science And Technol

• Kodama Katsuaki

  Department Of Physics Division Of Material Science Nagoya University

• Aso Naofumi

  Neutron Scattering Laboratory Institute For Solid State Physics University Of Tokyo

• KAKURAI Kazuhisa

  Quantum Beam Science Directorate, Japan Atomic Energy Agency

• Kakurai K

  Quantum Beam Science Directorate Japan Atomic Energy Agency

• Kakurai Kazuhisa

  Neutron Scattering Laboratory Institute For Solid State Physics The University Of Tokyo

• Kakurai Kazuhisa

  Advanced Science Research Center Japan Atomic Energy Research Institute

• Nukui Katsuyuki

  Neutron Science Laboratory Institute For Solid State Physics University Of Tokyo:(present Address)fu

• NISHI Masato

  Department of Applied Physics,Faculty of Engineering,Hiroshima Univershity

• Kakurai K

  Japan Atomic Energy Agency

• Kadowaki Hiroaki

  Department Of Physics Graduate School Of Science Tokyo Metropolitan University

• Ueda Yutaka

  Institute For Solid State Physic The University Of Tokyo

• Aso Naofumi

  Neutron Science Laboratory Institute For Solid State Physics The University Of Tokyo

• Nukui Katsuyuki

  Neutron Science Laboratory Institute For Solid State Physics The University Of Tokyo:(present Addres

• Kakuta Kazuyuki

  Department Of Physics Aoyama-gakuin University

• KAKURAI Kazuhisa

  Advanced Science Research Center, Japan Atomic Energy Research Institute

• NISHI Masakazu

  Institute for Solid State Physics, The University of Tokyo

• NUKUI Katsuyuki

  Neutron Science Laboratory, Institute for Solid State Physics, The University of Tokyo:(Present address)Fuji Photo Film Co. Ltd.

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