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Nonequilibrium Relaxation Study on the Ferromagnetic Transition of Ising Spin Glass Model

  • N. Ito
  • Y. Ozeki
Part of the Springer Proceedings in Physics book series (SPPHY, volume 90)

Abstract

Ferromagnetic transition of the ±J Ising model is studied simulationally for the cubic lattice. Nonequilibrium relaxation method is used to locate the transition point and to estimate the values of exponents. The dynamical exponent z increases smoothly when the density of ferromagnetic interaction, p, is decreased from 1. The static exponents are changed discontinuously when p is decreased from 1, and they stay in a universality class when p mc < p < 1, where p mc denotes the value of multicritical density. At p = p mc, the static exponents are different from those in p mc < p < 1 and p = 1

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • N. Ito
    • 1
  • Y. Ozeki
    • 2
  1. 1.Department of Applied Physics, School of EngineeringThe University of TokyoHongo, Bunkyo-ku, TokyoJAPAN
  2. 2.Department of PhysicsTokyo Institute of TechnologyOh-okayama, Meguro-ku, TokyoJAPAN

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