Invention Application
US20020197514A1 Perpendicular magnetic recording media, manufacturing process of the same, and magnetic storage apparatus using the same 有权
垂直磁记录介质,制造工艺及其使用的磁存储装置

Perpendicular magnetic recording media, manufacturing process of the same, and magnetic storage apparatus using the same
Abstract:
Provided are a double-layer perpendicular magnetic recording medium having a high medium S/N at an areal recording density of 50 Gbits or more per square inch, and a magnetic storage apparatus having excellent reliability with a low error rate. The perpendicular magnetic recording medium is formed by sequentially laminating a domain control layer, an amorphous soft magnetic underlayer, an intermediate layer, and a perpendicular recording layer on a substrate. The domain control layer is a triple-layer film formed by laminating a first polycrystalline soft magnetic layer, a disordered antiferromagnetic layer, and a second polycrystalline soft magnetic layer from a substrate side.
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