Magnetic recording medium, method of producing magnetic...

Details Magnetic recording medium, method of producing magnetic... Magnetic recording medium, method of producing magnetic...

2007-03-13

2007-03-13

Bashore, Alain L. (Department: 1762)

Coating processes

Direct application of electrical, magnetic, wave, or...

Magnetic field or force utilized

C427S599000, C427S128000, C427S129000, C427S132000

Reexamination Certificate

active

10845868

ABSTRACT:
A magnetic recording medium has a recording layer, disposed above a surface of a substrate and made of hard magnetic nano-particles. The hard magnetic nano-particles are made of an alloy having as a main component an element selected from a group consisting of FePt, FePd and CoPt, and the hard magnetic nano-particles have axes of easy magnetization oriented in a direction approximately perpendicular to the surface of the substrate.

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Sun et al.,Monodisperse FePt Nanoparticles and Ferromagnetic FePt Nanocrystal Superlattices, Science, vol. 287, Mar. 17, 2000, pp. 1989-1992.

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