Magneto-optical recording medium

Details Magneto-optical recording medium Magneto-optical recording medium

1994-10-05

1997-01-21

Kiliman, Leszek

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428694ML, 428694SC, 428694LE, 428694DE, 428694RL, 428900, G11B 566

Patent

active

055958052

ABSTRACT:
A magneto-optical medium has a substrate through which a light beam is transmitted and a recording-reproduction layer. The recording-reproduction layer, which exhibits an in-plane magnetization characteristic at the first temperature while still containing magnetization components in the perpendicular direction corresponding to information, comes to exhibit a perpendicular magnetization characteristic above the second temperature higher than the first temperature. In this magneto-optical recording medium, information is reproduced by utilizing a temperature distribution of the recording-reproduction layer being subjected to irradiation of a light beam and by raising the temperature of a portion within a light spot of the light beam from the first temperature to the second temperature.

REFERENCES:
patent: 4610912 (1986-09-01), Takahashi
patent: 4670353 (1987-06-01), Sakurai
"Read Out Mechanism Of Magnetically Induced Super Resolution" (Proceedings of Magneto-Optical Recording International Symposium 1991, J. Magn. Soc. Jpn., vol. 15, Supplement No. sl (1991, pp. 319-322.

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