Exchange coupling optical recording medium and recording/reprodu

Details Exchange coupling optical recording medium and recording/reprodu Exchange coupling optical recording medium and recording/reprodu

1994-10-12

1997-01-07

Neyzari, Ali

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

360 59, G11B 1100

Patent

active

055924450

ABSTRACT:
A magneto-optical recording medium includes: a mask layer having a first compensation temperature higher than a predetermined reproduction temperature and lower than a predetermined first recording temperature, a first Curie temperature higher than a predetermined second recording temperature and a first coercive force, and for storing information assigned to magnetizing directions; and an information recording layer having a second compensation temperature higher than the reproduction temperature and lower than the first compensation temperature, a second Curie temperature lower than the second recording temperature and a second coercive force, and for storing information assigned to magnetizing directions.

REFERENCES:
patent: 4771347 (1988-09-01), Horimai et al.
patent: 4910622 (1990-03-01), Saito et al.
patent: 4955007 (1990-09-01), Aratani et al.
patent: 5164926 (1992-11-01), Matsumoto
patent: 5168482 (1992-12-01), Aratani et al.
patent: 5187694 (1993-02-01), Ichihara et al.
patent: 5240784 (1993-08-01), Matsumoto
Proc. Int. Symp. on Optical Memory, 1987, Japanese Journal of Applied Physics, vol. 26 (1987) Supp. 26-4 by Saito et al.

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