Perpendicular magnetic recording medium and production...

Details Perpendicular magnetic recording medium and production... Perpendicular magnetic recording medium and production...

G - Physics

11

B

352/31

G11B 5/716 (2006.01) G11B 5/66 (2006.01) G11B 5/84 (2006.01)

Patent

CA 2017696

A perpendicular magnetic recording medium for use on a magnetic recording/reproducing apparatus which has a magnetic head for recording/reproduction includes a substrate, a magnetic recording layer having a perpendicular magnetic anisotropy, and a soft magnetic under layer interposed between the substrate and the magnetic recording layer. The soft magnetic under layer includes a mechanism for for suppressing a motion of domain walls of the soft magnetic under layer at least with respect to an external magnetic field which is smaller than a stray magnetic field in a vicinity of the magnetic head within the magnetic recording/reproducing apparatus.

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