Magnetization of amorphous Gd-Co-Ni films

Abstract

The temperature dependence of magnetization from 4.2 to 500°K for amorphous Gd-Co-Ni films obtained by evaporation is found to be satisfactorily described by a two-sublattice model in wihch the two 3d transition metals form one sublattice interacting antiferromagnetically with the Gd sublattice. The unique magnetization behavior observed is attributed to an intersublattice exchange interaction which is small in comparison to the transition-metal intrasublattice exchange interaction.