Role of magnetoelastic anisotropy in Ni/Pt multilayer films

Perpendicular magnetic anisotropy (PMA) at room temperature in Ni/Pt multilayer thin films was obtained for samples of constant 3 /spl Aring/ Pt and 7-16 /spl Aring/ Ni sublayer thicknesses, prepared by sequential dc magnetron sputter deposition. Accurate stress and magnetostriction measurements revealed that stress-induced magnetoelastic anisotropy was a major origin for the observed PMA in this system.