Influence of FeCo Layers Thickness on the Interfacial Asymmetry of FeCo/Si Multilayers Fabricated by the Direct Current Magnetron Sputtering

Abstract

For FeCo/Si multilayers, The FeCo layers transit from amorphous to crystalline as their thickness thicker than 4.0nm, severe and asymmetry interfacial diffusion exited, because of the difference of surface free energy of Fe89Co11 and Si.