Magnetic recording medium for longitudinal recording and method

Details Magnetic recording medium for longitudinal recording and method Magnetic recording medium for longitudinal recording and method

1996-02-20

1998-06-16

Kiliman, Leszek

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428336, 428694T, 428694TS, 428694TK, 428900, 2041922, G11B 566

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057667560

ABSTRACT:
A magnetic recording medium for longitudinal recording uses a non-magnetic substrate made of glass ceramics that is suitable for high density recording with low noise. The magnetic recording medium is obtained by forming a magnetic recording film mainly containing cobalt on a non-magnetic glass substrate through a non-magnetic underlaying film made of Cr. Further a non-magnetic covering film is formed thereon. With respect to the crystal orientation of the faces of cobalt measured by X-ray diffraction, the diffraction intensity of the (0002) face is 1.5 times or more and 8 times or less the total diffraction intensities of the other faces.

REFERENCES:
patent: 4654276 (1987-03-01), Ahlert
patent: 4842917 (1989-06-01), Ohno
patent: 4894133 (1990-01-01), Hedceoth
patent: 5569533 (1996-10-01), Lal
Abstract of Meeting of Japan Society of Applied Magnetism, Nov. 1989, p. 13.
IEEE Transactions on Magnetics, vol. 26, No. 5, Sep. 1990, "Signal to Noise Ratio of Thin Film Disks With Various Orientation Ratios", M. Mirzamaani et al, pp. 2457-2459.
IEEE Transactions on Magnetics, vol. 24, No. 6, Nov. 1988, "Dependence of Magnetics, Microstructures and Recording Properties on Underlayer Thickness in CoNiCr/Cr Media", T. Yogi et al, pp. 2727-2729.

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