Method for increasing track density of magneto-optical...

Details Method for increasing track density of magneto-optical... Method for increasing track density of magneto-optical...

G - Physics

11

B

352/33.3

G11B 11/03 (2006.01) G11B 7/007 (2006.01) G11B 11/105 (2006.01)

Patent

CA 2015900

ABSTRACT OF THE DISCLOSURE An optical data storage medium has, on one face, a recording track and a non-recording track for high- density magneto-optical recording. The media is manufactured by sputtering magnetic material onto a surface with alternating tracks of rough and smooth textures. Alternatively, the media may be manufactured by depositing a coating of hydrogenated carbon composition and exposing the coating to ion bombardment, or by sputtering or angular deposition of magnetic material onto a corrugated surface.

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