Critical exponents of spin-galss systems

The critical exponents at the glass temperature $T_g$ of a spin glass are estimated by making use of predictions obtained from a phase-space percolation model, in combination with scaling arguments. With this hypothesis, the whole set of exponents for a given system, including the dynamic exponent, can be expressed simply in terms of a single nonuniversal parameter. The model is checked against data from simulations and from three sets of experiments; agreement is very satisfactory.