Yw. Wang et al., Magnetic properties of ordered Fe(x)AE(1-x) nanowire arrays embedded in anodic alumina membranes, CHEM P LETT, 339(3-4), 2001, pp. 174-178
Ordered Fe-Ag alloy nanowire arrays embedded in the nanochannels of anodic
alumina membranes (AAM) were successfully fabricated by electrodeposition.
Scanning electron microscopy (SEM) and transmission electron microscopy (TE
M) observations reveal that the Fe-Ag alloy nanowires were uniformly assemb
led into the hexagonally ordered nanochannels of AAM. Magnetic measurements
show that the perpendicular coercivity (H-C perpendicular to) for the orde
red Fe-Ag nanowire arrays embedded in AAM increased dramatically as the ann
ealing temperature (T-A) rose from 300 degreesC to 400 degreesC, reached it
s maximum (239.5 Oe) at 400 degreesC. and then decreased sharply as T-A ros
e from 400 degreesC to 600 degreesC. However. there was no much change for
the parallel coercivity (H-C parallel to). The mechanism of this phenomenon
is discussed in this Letter. (C) 2001 Published by Elsevier Science B.V.