Аннотация:The paper presents a brief overview of the study of the magnetic and magnetostrictive properties of intermetallic compounds based on gadolinium. The report is based on published research conducted by domestic and foreign researchers and the authors of the work itself. In addition, data on the study of hyperfine interactions on 59Co nuclei in alloys of the system Gd1-xZrxCo2 are presented. It is shown that the type of substitution in a rare-earth sublattice significantly affects the nature of magnetism in the alloys studied. Thus, it is proven that in substitution alloys with yttrium, the one-ionic magnetostriction mechanism prevails, while in alloys with zirconium, magnetostriction is of a zone nature and is due to the polarization of collectivized conduction electrons. However, as shown in the work, this collectivization is heterogeneous. As a result, there are two types in the cobalt sublattice with different local environments.
