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Magnetoresistive transducer including CoFeZ soft magnetic layer

  • US 6,154,349 A
  • Filed: 01/16/1997
  • Issued: 11/28/2000
  • Est. Priority Date: 04/26/1996
  • Status: Expired due to Fees
First Claim
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1. A magnetoresistive transducer comprising:

  • a multilayer having at least a soft magnetic layer and a conductive nonmagnetic layer alternately laminated therein, wherein said soft magnetic layer is a multilayer superposed structure including a (Coy Fe100-y)100-x Zx alloy layer, wherein Z represents boron, and x and y represent atomic fractions (at %), and an alloy layer containing at least Ni and Fe, said (Coy Fe100-y)100-x Zx alloy layer of said soft magnetic layer bordering on said nonmagnetic layer and having a face-centered cubic lattice structure with a d spacing smaller than a d spacing of a Coy Fe100-y alloy; and

    a pair of electrodes formed on said multilayer for allowing a sense current to pass through said multilayer.

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