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Spin-valve film, magnetoresistance-effect device and magnetoresistance-effect magnetic head

  • US 6,287,709 B1
  • Filed: 09/16/1999
  • Issued: 09/11/2001
  • Est. Priority Date: 09/21/1998
  • Status: Expired due to Fees
First Claim
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1. A spin-valve film comprising:

  • a fixed layer in which a direction of magnetization is substantially fixed in a first direction;

    a free layer in which a direction of magnetization can be changed relative to the first direction by an external magnetic field; and

    a non-magnetic layer between the fixed layer and the free layer, wherein, said free layer comprises at least a laminate film having a Ta film and a (NiFe)1−

    x
    Tax film, and x is 0.09 to 0.16.

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