Magnetic recording head, magnetic head assembly, magnetic recording apparatus, and magnetic recording method
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United States of America Patent
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Mar 31, 2015
Grant Date -
Jul 17, 2014
app pub date -
Feb 19, 2014
filing date -
Nov 28, 2008
priority date (Note) -
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Abstract
An example magnetic recording apparatus includes a magnetic recording medium and a magnetic recording head. The magnetic recording head includes a first magnetic pole to apply a recording magnetic field to a magnetic recording medium, a spin torque oscillator provided parallel to the first magnetic pole, a first coil which surrounds the first magnetic pole, to magnetize the first magnetic pole, and a second coil to pass a current independently of the first coil and magnetize the first magnetic pole. A signal processor writes and reads a signal on the magnetic recording medium by using the magnetic recording head.
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