Critical behavior of the three-dimensional Ising spin glass

Abstract

The three-dimensional nearest-neighbor Ising spin-glass model with Gaussian bonds (〈$J^2$〉=1) is studied numerically using the ‘‘large-cell’’ renormalization group. Estimates for the critical coupling and the thermal exponent are $K_c$=1/$T_c$=1.2±0.1 and $y_t$=1/ν=0.30±0.05, respectively.