Magneto-optical recording medium

Details Magneto-optical recording medium Magneto-optical recording medium

1993-09-30

1996-10-15

Kiliman, Leszek

Stock material or miscellaneous articles

Composite

Of inorganic material

428336, 428694DE, 428694XS, 428694RL, 428694PR, 428900, 369 13, 365122, G11B 566

Patent

active

055652786

ABSTRACT:
A magneto-optical recording medium includes a magneto-optical layer, a reflection layer and an inorganic dielectric layer interposed therebetween. The dielectric layer is extremely thin so that it will exhibit almost no optical effect, thereby allowing a high CN ratio to be obtained. Thermal conductivity of the dielectric layer is so low that the magneto-optical and reflection layers are thermally isolated from each other. That is, if refractive index of the dielectric layer is n, thickness of the dielectric layer is T (nm), and the thermal conductivity of the dielectric layer is C (J (m sec K).sup.-1), then the thickness T is set within a range that satisfies the following equation:

REFERENCES:
patent: 4786559 (1988-11-01), Murakami et al.
patent: 4800122 (1989-01-01), Kano et al.
patent: 4847132 (1989-07-01), Takao et al.

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