Ferromagnetic Transition of ±J Ising Spin Glass Model on Square Lattice

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概要

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• The ferrotmagnetic transition of B,7-Ising spin-glass model on sqtrare lattice is studied by usinglVIonte Carlo sitaatrlation. At ferrortaagnetic-bond density p : 0.96 xvhere the system showsferroraaagnetic transition, tlte spontsxneotrs taaagnetization, the ratio (m') / <777'>' and the noneqtrilibritruta relaxation (NER) are studied. The transition is estiuaaated to be at K. : 0.5100(1).The analysis by NER gixxes the taaost reliable estitn?ttion with the least CPU tinaae ['or sin?tulationsanuong the three ttaethods. The valtre of rnagnetization exponerat f3 is estinaated to be 0.130(10)which coincides with thatt of the pttrely ferrotnagnetic Ising unodel (p :: 1). The dynarnicalcritical exponent z is estitaaated to be 2.418(23) froun the NER analysis which is different frotnthat of the ptrre umodel. The size of siuaatrlated lattices is Lip to 2001 X 2000, and the ntrmber of'totally trpdated Ising spins is 5.5 x 10"

• 1998-04-15

著者

• ITO Nobuyasu

  Department of Applied Physics, The University of Tokyo

• MATSUHISA Takashi

  Department of Neurosurgery, Matsunami General Hospital

• Matsuhisa Takashi

  Department Of Neurosurgery Matsunami General Hospital

• Matsuhisa Takashi

  Department Of Electrical Engineering Nagaoka University Of Technology

• Ito Nobuyasu

  Department Of Applied Physics Faculty Of Engineering The University Of Tokyo

• Ito Nobuyasu

  Department Of Applied Physics School Of Engineering The University Of Tokyo

• KITATANI Hedetsugu

  Department of Electrical Engineering,Nagaoka University of Technology

• Murai Toshihiro

  The Department Of Internal Medicine Matsunami General Hospital

• Kitatani Hidetsugu

  Department Of Electrical Engineering Nagaoka University Of Technology

• Kitatani Hedetsugu

  Department Of Electrical Engineering Nagaoka University Of Technology

• Murai Toshihiro

  Depertment Of Medicine/clinical Research Center Of Endocrinology &metabolism Matsunami Hospital

• Ito Nobuyasu

  Department of applied Physics

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