Influence of Dzyaloshinsky-Moriya interactions on the critical behavior of metallic spin glasses

Abstract
We present nonlinear magnetization measurements as a function of field at different temperatures TTg on CuMn 0.2 at. % and AgMn 0.5 at. % alloys doped with various amounts of gold impurities. We show that one has to consider the anisotropy as a relevant scaling parameter in order to obtain a complete coherent description of the critical behavior.