Metal thin film magnetic recording medium and manufacturing method thereof

摘要

A metal thin film magnetic recording medium comprising an underlying non-magnetic layer and a magnetic layer comprising a Co-alloy having a uni-axial magnetocrystalline anisotropy formed in this order by lamination on the surface of a non-magnetic substrate. On the substrate, are formed a seed layer comprising an oxygen-containing non-magnetic amorphous metal or a seed layer comprising a non-magnetic amorphous metal having an oxygen-containing layer (not illustrated) on the surface, and an underlying non-magnetic layer is laminated on the seed layer. Further, a seed layer comprising an amorphous Cr- or V-alloy is formed on the substrate, and an underlying non-magnetic layer is laminated on the seed layer.