Moment distribution in amorphous magnetic ribbons by Mössbauer measurements

Abstract

Mössbauer effect measurements were obtained on smooth-surface Fe78B13Si9 amorphous ribbons annealed in a transverse magnetic field at high temperature. Absorption spectra were obtained with the ribbon plane tilted at several angles with respect to the direction of the γ rays, in an external field ranging from 0 to 10 Oe. Intensity ratios were analyzed to obtain the magnetization as a function of field. A large zero-field spread was deduced and excess scatter near the anisotropy field was observed.