Magneto-optical recording system

Details Magneto-optical recording system Magneto-optical recording system

G - Physics

11

B

117/24.2, 352/20

G11B 13/00 (2006.01) G11B 11/105 (2006.01) G11B 13/04 (2006.01)

Patent

CA 1310113

Abstract Disclosed is herein a magneto-optical recording system comprising: preparing a magneto- optical recording medium comprising a magneto-optical recording layer and a bias magnetic field formed on a transparent substrate, the magneto-optical recording layer having Curie temperature higher than room temperature, the bias magnetic layer having compensation temperature higher than Curie temperature, the magneto- optical recording layer and the bias magnetic layer being superposed having a nonmagnetic layer therebetween, and applying heating means to the magneto- optical recording medium having first and second heating power levels, the first heating power level being selected enough to heat the magneto-optical recording layer higher than the Curie temperature of the magneto- optical recording layer and to heat the bias magnetic layer higher than the compensation temperature of the bias magnetic layer, the second heating power level being selected enough to heat the magneto-optical recording layer higher than the Curie temperature of the magneto-optical recording layer while keeping the bias magntic layer below the compensation temperature of the bias magnetic layer.

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