Cobalt–platinum–carbon thin film was deposited with a chemical composition of The film had a nanogranular morphology with a grain size ranging from 5 to 15 nm. It consisted of cobalt–platinum grains which had a faulted hexagonal close-packed phase and were separated by graphitelike carbon boundaries. The film in-plane coercivity was 1500 Oe, compared to a few hundreds oersteds in the case of cobalt–carbon. This result establishes a way of fabricating high coercivity cobalt–carbon based materials, which have potential applications as high density magnetic recording media.
REFERENCES
1.
T.
Yogi
, T. A.
Nguyen
, S.
Lambert
, G.
Gorman
, and G.
Castillo
, Mater. Res. Soc. Symp. Proc.
232
, 3
(1991
).2.
T.
Yamashita
, L. H.
Chan
, T.
Fujiwara
, and T.
Chen
, IEEE Trans. Magn.
MAG-27
, 4727
(1991
).3.
4.
5.
T.
Hayashi
, S.
Hirono
, M.
Tomita
, and S.
Umemura
, Nature (London)
381
, 772
(1996
).6.
J.-J.
Delaunay
, T.
Hayashi
, M.
Tomita
, and S.
Hirono
, J. Appl. Phys.
82
, 2200
(1997
).7.
International Centre for Diffraction data, JCPDS Powder Diffraction File, Cobalt Hexagonal Card 05-0727, Cobalt Cubic Card 15-0806.
8.
9.
A. S. Darling, Platinum Met. Rev. 7, 96 (1963).
10.
11.
J. A.
Aboaf
, S. R.
Herd
, and E.
Klokhom
, IEEE Trans. Magn.
MAG-19
, 1514
(1983
).
This content is only available via PDF.
© 1997 American Institute of Physics.
1997
American Institute of Physics
You do not currently have access to this content.