AC Susceptibility of the Three-Dimensional ±J Ising Model
Recently AC susceptibilities χ(w) and relaxation time distribution g(τ) in the ±J Ising spin glasses(SG) were calculated by Monte Carlo simulations, and characteristic differences were found in the two-dimentional(20) and three-dimensional(3D) systems by Suzuki et al.. We showed that these behaviors can be reproduced by a model based on the picture of thermally activated hopping of state in an ultrametric phase space . The work in Ref. is restricted to the case of p=0.5, where p is the probability that J i j is +J. Here we study AC susceptibilities in the 3D ±J Ising model on a simple cubic lattice for some p’s in the range of 0.5<p<1, using the MC simulation. The details of the model and the method are referred to Ref..
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