Magnetic recording medium and method of producing the same,...

Details Magnetic recording medium and method of producing the same,... Magnetic recording medium and method of producing the same,...

2006-05-23

2006-05-23

Rickman, Holly (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

C428S667000, C428S900000, C427S131000

Reexamination Certificate

active

07049013

ABSTRACT:
A magnetic recording medium is provided with a substrate, and a magnetic layer made of a CoCr-based alloy and having a multi-layer structure and disposed above the substrate. The multi-layer structure has a first magnetic layer disposed above the substrate and at least one second magnetic layer disposed on the first magnetic layer on an opposite side from the substrate. The first magnetic layer has a Cr-content larger than that of the second magnetic layer, and has a larger sum total content of nonmagnetic elements which are other than Cr and have a larger atomic radius than Co than the second magnetic layer.

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IEEE Transactions on Magnetics, vol. 28, #5, Sep. 1992, Paik et al. pp 3084-3086.
IEEE Transactions on Magnetics, vol. 27, #6, Nov. 1991, Tani et al. pp 4736-4733.

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