Dominant Contribution of Preferential Resputtering Effect on Perpendicular Uniaxial Anisotopy in Amorphous Gd–Co Films

Abstract

In order to investigate the physical origin of the perpendicular uniaxial anisotropy ( K u ) in the amorphous Gd–Co films, 4π M s and K u of the films prepared under some sputtering conditions were measured. It is found that K u is induced by the preferential resputtering effect of the amorphous Gd–Co films.