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Spin-valve magnetoresistive head, and composite-type magnetic head and magnetic recording medium drive using the same

  • US 20020034057A1
  • Filed: 11/26/2001
  • Published: 03/21/2002
  • Est. Priority Date: 07/05/1999
  • Status: Active Grant
First Claim
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1. A spin-valve magnetoresistive head having a device part and terminal parts provided to both ends of the device part, the spin-valve magnetoresistive head comprising:

  • a first free magnetic layer formed from one to the other of the terminal parts; and

    a lamination in the terminal parts on said first free magnetic layer, the lamination including an antiparallel coupling intermediate layer, a soft magnetic layer, and a first antiferromagnetic layer, the antiparallel coupling intermediate layer having a function of making front and rear magnetization orientation of a magnetic layer contacting the antiparallel coupling intermediate layer substantially antiparallel, the first antiferromagnetic layer applying to the soft magnetic layer a bias magnetic field substantially perpendicular to a direction of an external magnetic field to be detected.

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