The Haldane State in CsNiCl_3 Detected by Magnetization Measurements:Observation of Quantum-Classical Crossover and the Valence Bond Solid State

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概要

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• We have confirrned frotaa strsceptibility and magnetization meastrrenaents that the Haldane statereally exists in ID phase of CsNiCl3 whicla trndergoes 3D ordering at 'Z'N : 4.8 IK. The obsen'vedstrsceptibility at low fields follows the predicted curxve for the S : 1 quantunu chaiuu with energygap (,4//cj3 x 10 K) down to near Tg. A naore definite evidence f'or the Haldane state is given bysttrdying the effect of the nonmagnetic impurities. XVe have revealed a real existence of S = 1 /2edge states characteristic of' the Haldane state atad ftrrther revealed a crossover frotta tlae quantunato classical regirnes as a function of both tenaperattrre and field. The result is consistent withthe tnodel that at loxv tetnperzrttrres (T< Tc : Arks) and low fields (H< Ha :: A/.qps)the Ilaldane state is well defined to f'orna the Valence-Bond-Solid while at high ternperattnres(T >?J l /k? ) and high fields (H >H0) the s3vstena is not in the Haldane state azay more.

• 社団法人日本物理学会の論文
• 1997-02-15

著者

• 網代 芳民

  京大院理

• 網代 芳民

  Department Of Chemistry Kyoto University:crest Japan Science And Technology Corporation (jst)

• Ajiro Y

  Department Of Chemistry Graduate School Of Science Kyoto University

• Takayuki ASANO

  Depatment of Applied Physics,Fukui University

• AJIRO Yoshitami

  Depatment of Applied Physics,Fukui University

• MEKATA Mamoru

  Depatment of Applied Physics,Fukui University

• KAMISHIMA Kenji

  Institute for Solid State Physics,University of Tokyo

• KOUI Katsuhiko

  Institute for Solid State Physics,University of Tokyo

• GOTO Tsuneaki

  Institute for Solid State Physics,University of Tokyo

• FURUSAWA Masahiro

  School of Materials Science,JAIST

• HORI Hidenobu

  School of Materials Science,JAIST

• Ajiro Y

  Department Of Physics Kyushu University

• Hori H

  Hokkaido Univ. Sapporo

• Hori H

  School Of Materials Science Jaist

• Asano T

  Department Of Mechanical Engineering Faculty Of Engineering And Resource Science Akita University

• Koui Katsuhiko

  Institute For Solid State Physics University Of Tokyo

• Goto T

  Institute For Solid State Physics University Of Tokyo

• Goto Tsuneaki

  Institute For Solid State Physics The University Of Tokyo

• Goto T

  Univ. Tokyo Chiba

• Goto Tsuneaki

  Institute For Solid State Physics University

• Kamishima Kenji

  Institute For Solid State Physics University Of Tokyo

• HORI Hiromitsu

  Division of Physics, Hokkaido University

• Mekata M

  Fukui Univ. Fukui

• Mekata Mamoru

  Department Of Applied Physics Faculty Of Engineering Fukui University

• Mekata Mamoru

  Department Of Applied Physics Fukui University

• Mekata Mamoru

  Department Of Chemistry Faculty Of Science Kyoto University:

• Furusawa Masahiro

  School Of Materials Science Jaist

• Asano Takayuki

  Depatment Of Applied Physics Fukui University

• Asano Takayuki

  Department Of Physics Faculty Of Science Kyushu University:crest Japan Science And Technology Agency

• Hori H

  Kyokugen Osaka Univ.

• Ajiro Yoshitami

  Department Of Applied Physics Faculty Of Engineering Fukui University

• Hori H

  School Of Material Science Japan Advanced Institute Of Science And Technology

• Goto Tsuneaki

  The Institute Of Solid State Physics Tokyo University

• Furusawa Masahiro

  School Of Material Science Jaist

• Asano Takayuki

  Department Of Mechanical Engineering Faculty Of Engineering And Resource Science Akita University

• Taketani Akio

  The Graduate School Of Science And Technology Kobe University

• Hori Hidenobu

  School Of Material Science Japan Advanced Institute Of Science And Technology

• Hori H

  Division Of Physics Hokkaido University

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