Abstract
Recording characteristics and wide band reproducing characteristics were investigated for laminated heads composed of Co-based super-structured nitride alloy films. The super-structured alloy film is composed of 250Å thick non-nitride and nitride layers of Co-NbZr and has higher thermal stability, higher saturation flux density, and higher initial permeability at high frequency region than conventional Co- Nb-Ta-Zr amorphous alloy film. Because of these excellent properties, high recording performance and wide band reproducing characteristics were achieved by laminated heads with narrow gap length.
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