Method for producing magneto-optical recording medium

Details Method for producing magneto-optical recording medium Method for producing magneto-optical recording medium

1996-11-15

1998-04-21

Resan, Stevan A.

Coating processes

Magnetic base or coating

Magnetic coating

427131, 20419215, 2041922, 20419222, 20419223, 20419227, G11B 585, C23C 1400

Patent

active

057415412

ABSTRACT:
In a magneto-optical recording medium having a substrate, a recording layer having at least a rare earth-transition metal alloy film formed on the substrate, and a dielectric layer formed on the recording layer, a depth of penetration in the recording layer for an element derived from the dielectric layer is set to 70 .ANG. or less from an interface between the recording layer and the dielectric layer in a depth-directional film structure analysis by an Auger electron spectroscopy. Accordingly, mixing of impurities into the recording layer can be suppressed to thereby lower the value of the required recording magnetic field.

REFERENCES:
patent: 4565734 (1986-01-01), Arai et al.
patent: 4666759 (1987-05-01), Okawa et al.
patent: 4741967 (1988-05-01), Yoshihara et al.
patent: 5019462 (1991-05-01), Steininger
Article by Kim et al from the Journal of Applied Physics, vol. 67, No. 9, May 1, 1990, pp. 5322 through 5324, "Influence on the Magnetic Properties by the Interface Reaction Between a TbCo Thin Film and a Si-Contained Protective Layer".

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