On the non-linear susceptibility of amorphous Gd₃₇Al₆₃ spin glass

We review our recent d.c. magnetization measurements of spin glasses and our analysis in terms of scaling in field H and in reduced temperature t = (T-TG) TG where TG represents the transition temperature in zero field. These results compare well with those of other groups, but the exponents differ strongly from mean field predictions. We also extend our analysis to provide a simple cluster model of scaling behavior. © 1983.