Magneto-optical recording medium
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United States of America Patent
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Issued Date -
Jul 12, 2001
app pub date -
Jan 8, 2001
filing date -
Jan 12, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A magneto-optical recording medium is provided, which makes it possible to reliably reproduce a long mark by increasing a leak magnetic field from a central portion of a continuous recording mark. The magneto-optical recording medium comprises a magnetic layer which is composed of a soft magnetic material and exhibits in-plane magnetization during reproduction of information, the magnetic layer being disposed in contact with a recording layer between the recording layer and a substrate. The flow of the magnetic flux of the magnetic domain formed in the recording layer is controlled by the magnetic layer, and the magnetic flux from the magnetic domain disposed in the recording layer is in a closed state through the inside of the magnetic layer. Accordingly, a leak magnetic field having a sufficient magnetic field intensity is generated from the central portion of the continuous recording mark. Information stored in the central portion of the continuous recording mark can be reliably transferred to a reproducing layer, and thus the information can be reliably reproduced. The magnetic layer may be also provided on the recording layer.
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