发明授权
US4994321A Perpendicular magnetic recording medium and the method for preparing the same 失效
垂直磁记录介质及其制备方法

Perpendicular magnetic recording medium and the method for preparing the
same
摘要:
A perpendicular magnetic recording medium such as a floppy disk is created by providing on at least one surface of a non-magnetic support, a magnetic layer having perpendicular magnetic anisotropy and a protective layer by sputtering. First, a magnetic layer is provided, secondly, the magnetic layer is surface treated by a plasma treatment or by applying an oxide layer or a nitride layer thereon and thirdly, the protective layer is applied thereto.
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