Patent ID: 6815097
Filing Date: 2004-11-09
Classification: G11B,Y10S,Y10T

Abstract:
A magnetic recording medium comprisinga non-magnetic substrate having thereon a non-magnetic underlayer, a magnetic recording layer comprising a Co alloy represented by the formula: aCobCrcPtdTaeZrfCuhBjRu, wherein b is from 8 to 26 at %, c is 20 at % or less, d is 7 at % or less, e is 4 at % or less, f is 3 at % or less, h is from 1 to 20 at %, j is 20 at % or less, and a is the balance, a soft magnetic layer and a protective layer, wherein the coercivity is 2,500 Oe or more, and the thickness of the soft magnetic layer is from 5 to 50 Ã¥.