Soft magnetic multilayer films for magnetic head

Details Soft magnetic multilayer films for magnetic head Soft magnetic multilayer films for magnetic head

1994-03-31

1995-09-19

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Core

G11B 5147

Patent

active

054521670

ABSTRACT:
This soft magnetic multilayer film is magnetic isotropic and is provided with a high saturation magnetic flux density and an anisotropy of high magnetic permeability, so that it is suitable for the various magnetic head at a high production yield. The soft magnetic multilayer film is comprised of at least one film unit, which comprises a plurality of soft magnetic layers made of Fe--M--N component alloy or Fe--M--B--N component alloy are laminated through a non-magnetic insulating layer on a bias-applied substrate by means of a sputtering and are provided with a high magnetic permeability which direction is different from both neighboring soft magnetic layers through the magnetic insulating layer.

REFERENCES:
patent: 5227193 (1993-07-01), Hori et al.
patent: 5304258 (1994-04-01), Ishiwata et al.
K. Nago et al., "Double-Structured Laminated Heads with Substrate Bias-Sputtered FeTaN Films" Bulletin of Japan Applied Magnetism Society, vol. 18, No. 2, pp. 99-102 (1994).

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