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Anomalous Phase in the 2D EA Ising Spin Glass

  • K. Nemoto
  • K. Hukushima
  • H. Takayama
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 70)

Abstract

We examine the possibility of the anomalous phase in the 2D ±J EA Ising spin glass, which corresponds to the Griffiths phase in the diluted ferromagnetic system. By Monte Carlo simulation, we find that the density of eigenvalues of the spatial correlation matrix has a weak anomaly around T c , the transition temperature for the pure ferromagnetic system, and that the autocorrelation function is scaled to a function of the power of time, the exponent of which deviates from 1 below T c .

Keywords

Monte Carlo Simulation Exponential Decay Autocorrelation Function Spin Glass Dilute System 
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Reference

  1. [1]
    M. Randeria, J.P. Sethna and R.G. Palmer Phys. Rev. Lett., 54 (1985) 1321Google Scholar
  2. [2]
    A.T. Ogielski: Phys. Rev., B32 (1985) 7384CrossRefADSGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1992

Authors and Affiliations

  • K. Nemoto
    • 1
  • K. Hukushima
    • 1
  • H. Takayama
    • 1
  1. 1.Institute of PhysicsUniversity of TsukubaTsukuba 305Japan

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