Recording medium for perpendicular magnetization

Details Recording medium for perpendicular magnetization Recording medium for perpendicular magnetization

1984-11-05

1986-11-11

O'Keefe, Veronica

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

420436, 428651, 428900, 427131, 427132, C22C 1907, G11B 566, H01F 1016

Patent

active

046222731

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 hafnium, cobalt being a main component with chromium and hafnium added thereto.

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