MAGNETIC AND MOSSBAUER STUDY OF HYDROGEN-AMORPHIZED GDFE2HX FERRIMAGNET

Changes in the magnetic properties of the intermetallic GdFe2 compound during hydrogen-induced amorphization have been studied. A sharp decr ease in energy of the Gd-Fe exchange interaction and an increase in th e magnetic moment of iron from 1.6 mu(B) in the initial compound to 2. 2 mu(B) in an amorphous hydride were established. The results obtained were interpreted from the assumption that a heterophase nanostructure occurs, in which the main amorphous ferrimagnetic phase is enriched i n Fe relative to the stoichiometry and is characterized by the non-uni form intersublattice exchange interaction.