Magnetic cluster, magnetic recording medium, method for...

Compositions – Magnetic

Reexamination Certificate

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C423S440000

Reexamination Certificate

active

07045074

ABSTRACT:
A magnetic cluster includes a (CoC2)4tetragonal structure with Co—C2—Co bonds, and a molecular formula (CoC2)x(x: natural number).

REFERENCES:
patent: 3228882 (1966-01-01), Harle et al.
patent: 5547748 (1996-08-01), Ruoff et al.
patent: 02-98904 (1990-04-01), None
patent: 05-175031 (1993-07-01), None
Nishi et al, “Formation and magnetic characteristics of cobalt-carbon nanocluster magnets embedded in amorphous carbon matrices”, Chemical Physics Letters, vol. 369, (1-2), pp. 198-203, Jan. 15, 2003.
Li et al, “Electronic structure and chemical bonding between the first row transition metals and C2:A photoelectron spectroscop stude of MC2- (M=Sc,V,Cr,Mn,Fe and Co)”, Jour. Chem, Physics, vol. 11, No. 18, Nov. 8, 1999, pp. 8389-8395.
Block et al., “The Magnetic Properties of Annealed Graphite-Coated Ni and Co Nanocrystals,” IEEE Transactions on Magnetics, vol. 34, No. 4, Jul. 4, 1998.

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