Comparison between conventional HDD write head and newly proposed flux control HDD write head (IMAGE)

American Institute of Physics

Comparison between conventional HDD write head and newly proposed flux control HDD write head

Caption

Comparison between conventional HDD write head and newly proposed flux control HDD write head. In the flux control HDD write head, the magnetization of the FC device is reversed against the gap field by spin-transfer torque. The reversed magnetization decreases the magnetic flux inside the write gap and increases the one outside the write gap, enhancing both the amplitude and gradient of the recording field.

Credit

Hirofumi Suto

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