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Perpendicular magnetic recording system and write head with transverse auxiliary pole for fast switching of write pole magnetization

  • US 8,179,633 B2
  • Filed: 08/28/2009
  • Issued: 05/15/2012
  • Est. Priority Date: 08/28/2009
  • Status: Expired due to Fees
First Claim
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1. A perpendicular magnetic recording write system for magnetizing regions in a perpendicular magnetic recording layer comprising:

  • a write head comprisinga main pole;

    a main electrically conductive coil around the main pole for generating magnetic flux in the main pole;

    a transverse auxiliary pole (TAP) coupled to the main coil and oriented at an angle to the main pole greater than 15 degrees and less than or equal to 90 degrees; and

    a write driver capable of supplying write current to the main coil, the TAP directing magnetic flux to the main pole in response to the write current.

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