Magnetic recording medium and method of manufacturing same

Details Magnetic recording medium and method of manufacturing same Magnetic recording medium and method of manufacturing same

1993-08-27

1995-07-18

Kiliman, L.

Stock material or miscellaneous articles

Composite

Of inorganic material

428332, 428336, 428611, 428694ST, 428694SL, 428701, 428702, 428704, 428900, 428928, 2041921, 20419212, 20419214, 20419215, 2041922, G11B 566, B65D 7500

Patent

active

054340144

ABSTRACT:
A thin film type longitudinal magnetic recording medium is manufactured by forming a magnetic layer of Co.sub.1-x-y Pt.sub.x Cr.sub.y, (0.15<x.ltoreq.0.35; 0<y.ltoreq.0.15), on a substrate. The magnetic layer is formed by sputtering under an inert gas atmosphere containing 0.1 to 15% by volume of at least one of N.sub.2 and O.sub.2.

REFERENCES:
patent: 4711810 (1987-12-01), Ando et al.
patent: 4749459 (1988-06-01), Yamashita et al.
patent: 4749628 (1988-12-01), Ahlert et al.
patent: 4789598 (1988-12-01), Howard et al.
patent: 4898774 (1990-02-01), Yamashita et al.
patent: 4928514 (1990-05-01), Natarajan et al.
patent: 4988578 (1991-01-01), Yamashita et al.
patent: 5066552 (1991-11-01), Howard
patent: 5147734 (1992-09-01), Nakamura
patent: 5352501 (1994-10-01), Miyamoto
Journal of Applied Physics, vol. 53, No. 10, p. 6941; "Effect of Nitrogen on the High Coercivity and Microstructures of Co-Ni Alloy Films"; Oct. 1982.
Journal of Applied Physics, vol. 53, No. 8; p. 3263; "The Effect of Cr and W Nucleation Layers on the Magnetic Properties of CoPt Films"; Howard; Apr. 15, 1988.

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