Typical SEM images of an AAO template inside a domain (a) and Co NWs deposited inside AAO pore channels: topography (b) and cross-section (c).
XRD profile of an array with . Inset shows a cross-sectional SEM image of the XRD specimen (image bar: ).
Normalized parallel and perpendicular hysteresis loops of Co NW arrays with and (a), (b), and (c).
Squareness (a) and coercive field (b) for both parallel and perpendicular orientations as function of aspect ratio (or ); variation of demagnetization factors for a prolate spheroid particle (c).
Slope at (a) and effective anisotropy field (b) as function of aspect ratio for Co NW arrays reported in Fig. 4. Variation of (calculated) magnetostatic interaction energy with respect to aspect ratio for two parallel axially magnetized wires (c).
Normalized curves of high aspect ratio Co NW arrays with (a), and extracted magnetic parameters (b). Insets in (a) show cross-sectional SEM images of the used templates with 40 and 70 nm pores (image sizes are identical at , dark lines correspond to pores, and columns correspond to pore walls).
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