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

1988-07-28

1990-01-16

Kastler, S.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148900, G11B 5845

Patent

active

048940984

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.
Appl. Physics Letters, New Magenetic Material Having Ultrahigh Magnetic Moment, vol. 20, No. 12, Jun. 15, 1972, Kim et al.
Solid State Physics vol. 7, No. 9, Sep. 1972, pp. 3-15.
Physica Status Solidi Nov. 16, 1983, pp. 212-222.
Soviet Inventions Illustrated, Section CH, Week 8349, Jan. 25, 1984, Derwent Publications, Ltd., London, L03, & SU 997 098.
Physica Status Solidi (a), vol. 80, No. 1, Nov. 16, 1983, Berlin, DE; B. Rauschenbach et al: "Formation of compounds by nitrogen ion implantation in iron," Abstract and page 214.

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