Super-resolution magneto-optical recording medium using magnetos

Details Super-resolution magneto-optical recording medium using magnetos Super-resolution magneto-optical recording medium using magnetos

1996-05-10

1998-02-10

Dinh, Tan

Dynamic information storage or retrieval

Storage or retrieval by simultaneous application of diverse...

Magnetic field and light beam

428694MM, G11B 1100

Patent

active

057176620

ABSTRACT:
A magneto-optical recording medium includes a reproducing layer for contributing to reproduction, a recording layer for storing information, and an intermediate layer disposed between the reproducing and recording layers. The intermediate layer magnetostatically couples the reproducing layer and the recording layer in an entire area between the two layers. The reproducing layer has a compensation temperature between room temperature and a Curie temperature thereof. Sublattice magnetizations in the reproducing layer and recording layer are oriented in opposite directions at one of a temperature lower than the compensation temperature and a temperature higher than the compensation temperature, and are oriented in the same direction in the other of a temperature lower than the compensation temperature and a temperature higher than the compensation temperature.

REFERENCES:
patent: 5208797 (1993-05-01), Nakaki et al.
patent: 5208799 (1993-05-01), Nakao et al.
patent: 5218581 (1993-06-01), Ohta et al.

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