Thin-film magnetic recording media with dual intermediate...

Details Thin-film magnetic recording media with dual intermediate... Thin-film magnetic recording media with dual intermediate...

2005-04-12

2005-04-12

Bernatz, Kevin M. (Department: 1773)

Stock material or miscellaneous articles

All metal or with adjacent metals

Having magnetic properties, or preformed fiber orientation...

C428S686000, C428S690000, C428S690000

Reexamination Certificate

active

06878460

ABSTRACT:
A thin film magnetic according medium with enhanced coercivity is provided. The magnetic recording medium comprises a non-magnetic substrate having a surface and a layer stack atop the substrate surface. The layer stack comprises a magnetic recording layer and a dual intermediate layer structure below the magnetic recording layer comprising a base layer and a non-magnetic layer between the base layer and the magnetic recording layer. The non-magnetic layer has a thickness less than that necessary for RKKY coupling between the base layer and the magnetic recording layer, and provides the medium with increased coercivity.

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Acharya, B., Ajan, A., Abarra, E., Inomata, A., and Okamoto, I. (App. Phys. Let., 80(1), 2002, 85-87).

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