Thin magnetic recording medium

Details Thin magnetic recording medium Thin magnetic recording medium

1981-04-16

1983-01-04

Silverman, Stanley S.

Stock material or miscellaneous articles

Structurally defined web or sheet

Physical dimension specified

204192M, 365122, 252 6255, 427132, 428336, 428692, 428693, 428400, G11B 564

Patent

active

043672574

ABSTRACT:
A magnetic recording medium having a thin magnetic amorphous rare earth metal-transition metal alloy film is disclosed, the amorphous alloy film having an axis of easy magnetization in a direction substantially vertical to the film surface and containing a crystalline phase in the amorphous phase. The magnetic recording medium exhibits high coercive force over a wide compositional range.

REFERENCES:
patent: 3342591 (1967-09-01), Gambino et al.
patent: 4210946 (1980-07-01), Iwasahi et al.
patent: 4277809 (1981-07-01), Fisher
patent: 4293621 (1981-10-01), Toyami
Mimura et al., Magnetic Properties of Amorphous Tb-Fe Thin Films Prepared by RF Sputtering, Applied Physics Letters, vol. 28, No. 12, 6/15/76, pp. 746-748.
Berry et al., Obtaining a Hard Magnetic Array in a Magnetically Soft Matrix, IBM Tech. Disc. Bulletin, vol. 16, No. 4, 9/1973, pp. 191-192.

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