Magnetic recording medium with vacuum deposited magnetic layer

Details Magnetic recording medium with vacuum deposited magnetic layer Magnetic recording medium with vacuum deposited magnetic layer

1981-03-04

1984-01-31

McCamish, Marion

Stock material or miscellaneous articles

Composite

Of inorganic material

427131, 428694, 428697, 428900, G11B 566

Patent

active

044290160

ABSTRACT:
The present invention relates to a magnetic recording medium of the vertical record type belonging to the Co-Cr series in which the residual magnetization is normal to said magnetic medium, characterized by the fact that Cr is present in an amount of 13 to 28% by weight based on the total of Co and Cr and the value of the saturation magnetization of said magnetic medium is larger than that of the bulk having the same composition as the mean value of composition of said magnetic medium.

REFERENCES:
patent: 3775179 (1973-11-01), Clow
patent: 4210946 (1980-07-01), Iwasaki et al.
patent: 4277809 (1981-07-01), Fisher
Iwasaki et al., Co-Cr Recording Films with Perpendicular Magnetic Anisotropy, IEEE Transactions on Magnetics, vol. Mag 14, No. 5, Sep. 1978, pp. 849-851.

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