Magnetic recording medium containing CoPtO-based alloy magnetic

Details Magnetic recording medium containing CoPtO-based alloy magnetic Magnetic recording medium containing CoPtO-based alloy magnetic

1997-05-19

1998-11-03

Rodee, Christopher D.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

428336, 428678, 428457, 428469, 428694TM, 428694T, 428694TS, G11B 5716

Patent

active

058305696

ABSTRACT:
A magnetic recording medium of this invention includes an underlayer formed on a substrate and made of a material containing vanadium as a main constituent, and a magnetic film formed on the underlayer and made of a CoPtO-based alloy. Another magnetic recording medium of this invention includes a first underlayer formed on a substrate and made of a crystal having a crystal structure for forming a body-centered cubic lattice, a second underlayer formed on the first underlayer and made of an amorphous material, and a magnetic film formed on the second underlayer and made of a CoPtO-based alloy. Further, the magnetic recording medium according to the present invention includes an underlayer formed on a substrate, a plurality of magnetic films laminated on the underlayer and interlayers provided respectively between the plurality of magnetic films, in which the underlayer and the interlayers are made of vanadium or an alloy mainly containing vanadium.

REFERENCES:
patent: 4652499 (1987-03-01), Howard
patent: 5051288 (1991-09-01), Ahlert et al.
patent: 5066552 (1991-11-01), Howard et al.

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