Anantharaman, M R; Shaijumon, M M; Ajayan, P M; Narayanan, T N(Springer, October 21, 2009)
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Abstract:
Hybrid magnetic nanostructures with high
coercivity have immense application potential in various
fields. Nickel (Ni) electrodeposited inside Cobalt (Co)
nanotubes (a new system named Ni @ Co nanorods) were
fabricated using a two-step potentiostatic electrodeposition
method. Ni @ Co nanorods were crystalline, and they have
an average diameter of 150 nm and length of *15 lm.
The X-ray diffraction studies revealed the existence of two
separate phases corresponding to Ni and Co. Ni @ Co
nanorods exhibited a very high longitudinal coercivity. The
general mobility-assisted growth mechanism proposed for
the growth of one-dimensional nanostructures inside nano
porous alumina during potentiostatic electrodeposition is
found to be valid in this case too