Magnetic recording head and disk drive provided therewith
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United States of America Patent
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Apr 5, 2016
Grant Date -
May 21, 2015
app pub date -
Jan 30, 2015
filing date -
Aug 30, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
According to one embodiment, a magnetic recording head includes a main pole configured to apply a recording magnetic field to a recording layer of a recording medium, a trailing shield opposed to the main pole with a write gap therebetween, and a high-frequency oscillator between the main pole and the trailing shield in a range of a width of the main pole in a track width direction, and configured to generate a high-frequency magnetic field. The high-frequency oscillator includes a spin injection layer, an intermediate layer, and an oscillation layer, and at least the oscillation layer comprises divided oscillation regions.
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