Process for preparing magnetic layer and magnetic head prepared

Details Process for preparing magnetic layer and magnetic head prepared Process for preparing magnetic layer and magnetic head prepared

1985-08-23

1988-09-20

Wolff, John H.

Dynamic magnetic information storage or retrieval

Head

Core

29603, G11B 5127

Patent

active

047729767

ABSTRACT:
Ion implantation is conducted in a desired area(s) of the surface of a magnetic layer, and annealing of the layer is carried out to control the composition in that desired area(s). The control of the composition may be facilitated by applying a one-directional or rotating magnetic field during ion implantation. In preparing a magnetic head, a portion of a magnetic pole at least on one side thereof in close proximity to a magnetic recording medium is formed into an iron or iron-based magnetic alloy film, at least part of which is subjected to ion implantation and annealing.

REFERENCES:
patent: 4372985 (1983-02-01), Bailey
patent: 4451500 (1984-05-01), Gerard et al.
patent: 4578728 (1986-03-01), Sakakima et al.
patent: 4631613 (1984-04-01), French
patent: 4641213 (1987-02-01), Shimada et al.
Rauschenbach et al., "Formation of Compounds by Nitrogen Ion Implantation in Iron", Physica Status Solids (a), vol. 80, No. 1, Nov. 16, 1983, pp. 211-222.

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