XRD pattern of the FeCo nanowire arrays after etching time of 5 h.
SEM images of AAO template and nanowire arrays. (a) Typical SEM image of AAO template. (b) The top view in low magnification. [(c) and (d)] SEM image of a typical cross section.
TEM images of AAO template and nanowire arrays. (a) The sample was etched for 5 h. (b) The nanowires with a diameter of about 40 nm. (c) The HRTEM image of the nanowires in (b). (d) The SAED pattern taken from a single nanowire in (b).
Normalized SQUID magnetometry data for dc electrodeposited nanowire array samples in both field orientations (a) at 300 K and (b) at 5 K.
Temperature dependence of coercivity of nanowire arrays. Solid stars denote the measured data. Solid lines are linear fitting results of Eq. (3) with temperature being independent of . The dotted lines are the fitting results of Eq. (4) with changing with temperature at .
The temperature dependence of with a saturated field parallel to the long axis of the nanowire arrays.
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