A MAGNETOCALORIMETRIC STUDY OF SPIN FLUCTUATIONS IN AMORPHOUS FEXZR100-X

Low temperature calorimetry data on amorphous FexZr100-x samples near the ferromagnetic/paramagnetic phase boundary at x=37.5 are reported, as well as some magnetocalorimetry data in magnetic fields of up to 5 T. The data are analyzed in terms of two models, one describing the ef fect of spin fluctuations (SF) and the other the effect of superparama gnetic clusters. The data are shown to favor the SF model and taken wi th earlier resistivity work, provides convincing evidence for the exis tence of SF in a-FexZr100-x.