Magnetic recording medium, method of manufacturing magnetic...

Details Magnetic recording medium, method of manufacturing magnetic... Magnetic recording medium, method of manufacturing magnetic...

2009-08-05

2011-10-11

Rickman, Holly (Department: 1785)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

Reexamination Certificate

active

08034471

ABSTRACT:
In a perpendicular magnetic recording medium in which at least a soft magnetic underlayer, an orientation control layer, a magnetic recording layer and a protective layer are formed on a non-magnetic substrate in order from the bottom, the orientation control layer has a laminated structure of two or more layers including an intermediate layer and a seed layer which is disposed closer to the non-magnetic substrate than the intermediate layer. The seed layer includes two or more kinds of elements having a face-centered cubic structure, has face-centered cubic (111) plane crystals oriented in a direction perpendicular to a substrate surface, and has a pseudo-hexagonal structure.

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