High density magnetic recording medium using FePtC thin film...

Details High density magnetic recording medium using FePtC thin film... High density magnetic recording medium using FePtC thin film...

2007-07-10

2007-07-10

Rickman, Holly (Department: 1773)

Stock material or miscellaneous articles

Magnetic recording component or stock

Thin film media

C428S836300

Reexamination Certificate

active

10679543

ABSTRACT:
A high density magnetic recording medium which has coercivity suitable to a magnetic record, fine grains, and a uniform grain size distribution, and which includes a FePtC alloy thin film containing an optimum carbon content, and a method of manufacturing the high density magnetic recording medium. The magnetic recording medium includes the FePtC alloy thin film containing 25 volume % carbon, thus having microscopic magnetic and structural properties suitable to the high density magnetic recording medium.

REFERENCES:
An article entitled “Nanocomposite and High Anisotropy Media”, By Christodoulides et al., published by Journal of Applied Physics, vol. 87, No. 9, May 1, 2000, pp. 6938-6940.
An article entitled “Magnetic Recording Beyond the First 100 Years”, By Speliotis, published by Journal of Magnetism and Magnetic Materials, 193, (1999), pp. 29-35.
An article entitled “Ordering of Island-like FePt L10 Thin Films”, By Shin et al., published by Applied Physics Letters, vol. 80, No. 20, May 20, 2002, pp. 3802-3805.

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