Patent ID: 6720075
Filing Date: 2004-04-13
Classification: G11B

Abstract:
A magnetic recording medium for vertically magnetic recording, said medium comprising a magnetic recording layer in which magnetic recording is carried out, wherein:said magnetic recording layer comprises an N-type Ferrimagnetic material; said N-type Ferrimagnetic material includes an amorphous alloy consisting of at least one element selected from rare-earth elements and at least one element selected from transition metal elements; and a composition proportion of said at least one element selected from rare-earth elements in said amorphous alloy is adjusted such that a compensation temperature of said N-type Ferrimagnetic material is higher than an operating temperature range in which said magnetic recording layer is actually used; wherein said magnetic recording layer is set such that coercive magnetic force increases with temperature rise within the Operating temperature range, and wherein said operating temperature range is approximately 0Â° C. through 80Â° C.