Direct-overwrite magneto-optic media

Details Direct-overwrite magneto-optic media Direct-overwrite magneto-optic media

G - Physics

11

B

352/33.3

G11B 11/10 (2006.01) G11B 11/105 (2006.01)

Patent

CA 2019721

43513 CAN 7A Abstract of the Disclosure A magneto-optic recording medium records data in a single, direct-overwrite step. The medium includes a magneto-optical storage layer and a magnetic biasing layer disposed in selected heat conductive relationship with the storage layer. The first magnetic field is generated externally of the storage layer at a first energy level of a laser to set the magnetic orientation of domains at the storage layer. At a second energy level of the laser, which is higher than the first energy level, the magnetic biasing layer provides a second magnetic field greater than the first magentic field for setting the magnetic orientation of domains in the storage layer. PFPT05.43

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