Magneto-optical recording medium
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United States of America Patent
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Feb 18, 2003
Issued Date -
N/A
app pub date -
Jul 10, 2000
filing date -
Dec 1, 1992
priority date (Note) -
Expired
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Abstract
A magneto-optical recording medium including a recording layer for recording information and a substrate for supporting the recording layer is disclosed. The recording layer includes: a recording magnetic film for recording the information, the recording magnetic film being formed of a perpendicular magnetic anisotropy film; a readout magnetic film for optically reading out the information, the readout magnetic film being capable of being magnetically coupled with the recording magnetic film by an exchange-coupling force; and a controlling magnetic film, provided between the recording magnetic film and the readout magnetic film, for controlling the exchange-coupling force. The controlling magnetic film has in-plane magnetic anisotropy at room temperature.
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