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Method and system for providing a magnetic transducer having a high moment bilayer magnetic seed layer for a trailing shield

  • US 8,582,241 B1
  • Filed: 05/23/2012
  • Issued: 11/12/2013
  • Est. Priority Date: 05/23/2012
  • Status: Active Grant
First Claim
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1. A magnetic recording transducer having an air-bearing surface (ABS) and comprising:

  • a write pole configured to write to a media;

    a nonmagnetic gap;

    a magnetic seed layer including a high moment layer and a magnetic buffer layer, the high moment layer being between the nonmagnetic gap and the magnetic buffer layer, the nonmagnetic gap being between the magnetic seed layer and the write pole, the high moment layer having a saturation magnetization greater than 2.3 T and a first corrosion potential, the magnetic buffer layer having a second corrosion potential less than the first corrosion potential;

    a trailing shield, the magnetic seed layer being between the trailing shield and the nonmagnetic gap layer, the magnetic buffer layer being between the trailing shield and the high moment layer; and

    at least one coil for energizing the write pole.

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