Thermally assisted magnetic recording medium and thermally assisted magnetic recording apparatus
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United States of America Patent
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Jul 22, 2014
Grant Date -
Sep 26, 2013
app pub date -
Aug 28, 2012
filing date -
Mar 23, 2012
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Abstract
According to one embodiment, a thermally assisted magnetic recording method performs heating at a temperature higher than the ambient temperature of the perpendicular recording medium and lower than a temperature at which a nucleation magnetic field Hn of the recording portion is 0, decreases a coercive force Hc of a recording portion by heating a perpendicular recording medium, and records magnetic information by applying a recording magnetic field from a recording magnetic pole to the recording portion having the decreased coercive force.
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