Recording medium for perpendicular magnetization

Details Recording medium for perpendicular magnetization Recording medium for perpendicular magnetization

1984-11-05

1986-07-29

O'Keefe, Veronica

Stock material or miscellaneous articles

All metal or with adjacent metals

Having magnetic properties, or preformed fiber orientation...

360134, 428662, 428663, 428660, 428667, 428668, 428679, 428928, 420436, G11B 566, C22C 1907

Patent

active

046030913

ABSTRACT:
A magnetic recording medium for perpendicular magnetization includes a base of a nonmagnetic material, a first magnetic layer of a soft magnetic material on a surface of the base, a second magnetic layer having perpendicular anisotropy on a surface of the first magnetic layer, the second magnetic layer being magnetized in a transverse direction thereof. The second magnetic layer is composed of a three-element alloy of cobalt, chromium, and tantalum, cobalt being a main component with chromium and tantalum added thereto.

REFERENCES:
patent: 4024489 (1977-05-01), Bajorek et al.
patent: 4079169 (1978-03-01), Nigh et al.
patent: 4124737 (1978-11-01), Wolfla
patent: 4410603 (1983-10-01), Yamamori et al.
patent: 4550062 (1985-10-01), Takayama et al.

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