Magnetic recording head and disk drive including the same
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United States of America Patent
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Apr 1, 2014
Grant Date -
Mar 20, 2014
app pub date -
Mar 11, 2013
filing date -
Sep 14, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
According to one embodiment, a magnetic recording head of a disk drive includes a main pole configured to generate a magnetic field in a direction perpendicular to a recording layer of a recording medium, a write shield magnetic pole opposite to a trailing side of the main pole with a gap, a coil configured to excite a magnetic flux in a magnetic circuit, and a high-frequency oscillator provided between a tip portion of the main pole on a side of the recording medium and the write shield magnetic pole to generate a high-frequency magnetic field. The write shield magnetic pole includes an end face opposite to the high-frequency oscillator and the end face is formed so that a distance from the main pole increases with an increasing distance from the recording medium.
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