Study of magnetic domains in amorphous ribbons by scanning electron acoustic microscopy

摘要

Scanning electron acoustic microscopy (SEAM) has been used in the observation of domain walls in ironhyphen; and cobalthyphen;based amorphous alloys ribbons. Controlled magnetic annealing experiments enabled the direct identification of domain walls in SEAM micrographs. Walls in perpendicular anisotropy regions of the high magnetostriction samples show a particular high contrast, probably related to the wall stress field.