Magneto-optical recording medium

Details Magneto-optical recording medium Magneto-optical recording medium

1987-10-28

1989-11-28

Lesmes, George F.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

427131, 428694, 428697, 428701, 428702, 428900, G11B 900

Patent

active

048837105

ABSTRACT:
A magneto-optical recording medium is disclosed, which comprises a substrate, and a magnetic layer supported on the substrate, the magnetic layer comprising (1) a first magnetic layer comprising a magnetic oxide with perpendicular magnetic characteristics, having a saturation magnetization Ms of 100 Gauss or less and a coercive force Hc.sub.1 of 1 KOe or less, and (2) a second magnetic layer comprising a magnetic oxide having a thermal conductivity.times.of less than 0.3 cal/cm.sec..degree.C. and a light absorption coefficient .alpha. of 5.times.10.sup.3 cm.sup.-1 or more. This magneto-optical recording medium may further comprises an auxiliary production layer comprising a magnetic material, which is overlaid adjacent to the first magnetic layer.

REFERENCES:
patent: 4544602 (1985-10-01), Kobayashi et al.
patent: 4562105 (1985-12-01), Machida et al.
patent: 4670322 (1987-06-01), Nakamura et al.
patent: 4690861 (1987-09-01), Nakamura et al.
patent: 4701881 (1987-10-01), Tanaka et al.

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