Mössbauer Effect and NMR Studies of Fe₇₂Pt₂₈ Invar Alloy

Abstract

The Mössbauer effect of Fe⁵⁷ and NMR of Pt¹⁹⁵ were measured for both the ordered and disordered states of the Fe₇₂Pt₂₈ Invar alloy. The differences in Mössbauer and NMR spectra between both states are explainable by taking into account of the different configurations of atomic arrangement at near neighbor sites. No indication of the coexistence of two magnetic phases, which has been considered as an essential origin of several anomalous behaviors of the Fe–Ni Invar alloy, was given in the Mössbauer and NMR spectra.