Magneto-optical recording element

Details Magneto-optical recording element Magneto-optical recording element

1985-07-08

1987-07-14

Cardillo, Raymond F.

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

369 14, 156643, 427 38, 427131, 430945, G11B 724, G11B 564

Patent

active

046807420

ABSTRACT:
In a magneto-optical recording element comprising a substrate, a magnetic layer and a dielectric layer, the dielectric layer is formed by deposition of a composition comprising Si.sub.3 N.sub.4 and a refractive index-improving agent such as Al.sub.2 O.sub.3 or Y.sub.2 O.sub.3. This dielectric layer has a high refractive index and the enhancement effect is improved. Moreover, this dielectric layer is excellent in the adhesion and resistance characteristics.

REFERENCES:
patent: 3600218 (1971-08-01), Pennebaker
patent: 4517257 (1985-05-01), Shimuzu et al.
patent: 4544443 (1985-10-01), Ohta et al.
patent: 4610912 (1986-09-01), Takahashi et al.

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