Magnetic thin film material for magnetic recording

Details Magnetic thin film material for magnetic recording Magnetic thin film material for magnetic recording

1995-08-28

1996-10-01

Sheehan, John

Metal treatment

Stock

Magnetic

420435, 420436, H01F 104

Patent

active

055607861

ABSTRACT:
Novel thin film materials comprised of certain Co-based alloys containing phosphorous, i.e., Co-Cr-P-Pt or Co-Cr-P-Ni alloy, which can provide a high coercive force and a high squareness ratio are disclosed. These magnetic thin film alloys exhibit excellent magnetic properties without heating the substrate or applying bias thereto during the film formation and when glass is used for the substrate as well as an Al alloy disk.

REFERENCES:
patent: 2200742 (1940-05-01), Hardy
patent: 3578571 (1971-05-01), McQuaid et al.
patent: 5004652 (1991-04-01), Lal et al.
patent: 5049451 (1991-09-01), Lal et al.
patent: 5057200 (1991-10-01), Lal et al.
IEEE Transactions on Magnetics, vol. 28, No. 5, Sep. 1992, pp. 3084-3086, C. R. Paik, et al., "Magnetic Properties and Noise Characteristics of High Coercivity CoCrPtB/Cr Media".

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