Magnetooptical recording medium and method for reproducing infor

Details Magnetooptical recording medium and method for reproducing infor Magnetooptical recording medium and method for reproducing infor

1997-05-13

1998-11-03

Neyzari, Ali

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

428694ML, G11B 1100

Patent

active

058319441

ABSTRACT:
A magnetooptical recording medium has a first magnetic layer which is an in-plane magnetization film at both room temperature and high temperatures and changed to a perpendicular magnetization film at intermediate temperatures, and a second magnetic layer which is composed of a perpendicular magnetization film. The recording medium enables realization of high S/N reproduction of information recorded at a pitch below the diffraction limit of light with a simple structure, and further improvement in linear recording density and track density.

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patent: 5486395 (1996-01-01), Murakami et al.
patent: 5616428 (1997-04-01), Nishimura et al.

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