抄録
Magnetic properties and microstructure of electroless-plated CoNiReP films varying primarily in cobalt content were investigated to clarify the origin of their magnetic anisotropy. The films which show perpendicular magnetic anisotropy contain ca. 25-40% of cobalt in deposit. They also show higher crystallinity and a c-axis orientation of hcp cobalt. It is considered that the anisotropy of the films is mainly due to the crystalline anisotropy based on this crystallographic structure, and that the smaller Ms value which decreases the demagnetizing field enhances the anisotropy. The shape anisotropy caused by segregation of the films is also considered to affect the overall anisotropy.
