Soft magnetic multilayer film and magnetic head provided with such a soft magnetic multilayer film

  • US 5,234,775 A
  • Filed: 12/04/1992
  • Issued: 08/10/1993
  • Est. Priority Date: 11/22/1988
  • Status: Expired due to Fees
First Claim
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1. A magnetic head comprising a sputtered magnetic multilayer film having a magnetostriction constant (λ

  • s) of an absolute value below 5×

    10-6, said multilayer film consisting of main crystalline layers, each main layer being of a thickness of 5 nm-40 nm and consisting of crystalline Fe alternating with amorphous secondary layers, each secondary layer being of a thickness of 2 nm-6 nm and having a magnetic constituent consisting at least 90 at % of amorphous iron.

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