Magnetic head having FeNiNb gap layer

Details Magnetic head having FeNiNb gap layer Magnetic head having FeNiNb gap layer

1990-09-27

1992-06-09

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Core

360126, G11B 5235, G11B 547

Patent

active

051212749

ABSTRACT:
A magnetic head comprises a pair of core halves made of a magnetic oxide and being opposite to each other. An FeNiNb type alloy film is arranged on at least a portion of the respective opposite surfaces of the two core halves. A magnetic metal film is provided on respective surfaces of the alloy films. Furthermore, a magnetic gap portion is formed at least a portion of a space defined between the both magnetic metal films. Portions of the alloy films near the magnetic gap portion are arranged substantially parallel to the magnetic gap portion. The alloy films have a composition represented by a composition formula: Fe.sub.a Ni.sub.b Nb.sub.c wherein a, b and c are percentage compositions of respective components on percent (%) by weight basis, and satisfy the following relationships:

REFERENCES:
patent: 5001590 (1991-03-01), Saito

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