Write once magneto-optic media and system

Details Write once magneto-optic media and system Write once magneto-optic media and system

1991-10-18

1997-02-04

Kiliman, Leszek

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Web or sheet containing structurally defined element or...

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428336, 428694ML, 428694EC, 428694SC, 428694RE, 428694DE, 428694XS, 428900, 369 13, 365122, G11B 566, B32B 516

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active

055996191

ABSTRACT:
An optical data storage medium is comprised of a data layer and a reference layer deposited onto a substrate. The data layer material is comprised of a transition metal rich rare earth-transition metal. The data layer has a destruction temperature greater than its Curie temperature. The reference layer is comprised of a transition metal poor rare earth-transition metal. The reference layer material has a Curie temperature greater than the destruction temperature of the data layer material. The result is a magneto-optic medium which may be recorded upon only once.

REFERENCES:
patent: 4467383 (1984-08-01), Ohta et al.
patent: 4855975 (1989-08-01), Akasaka et al.
J. Saito, et al., Direct Overwrite by Light Power Modulation on Magneto-Optical Multi-Layered Media, Japanese Journal of Applied Physics, vol. 26, 1987, Supplement 26-4.

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