Magnetic properties of iron nanowires in a porous aluminum oxide matrix

This paper is devoted to the study of magnetic properties of iron nanowire arrays synthesized using a porous Al₂O₃ template. Samples of porous aluminum oxide were obtained by double electrochemical anodization of the prepared foil in 0.5 M oxalic acid at a voltage of 60 V and a temperature of 25 °C and studied by scanning electron microscopy. The pore diameter is about 85 nm. Nanowires were electrodeposited in a three-electrode setup in the prepared matrices in a pulsed mode. The surfaces of porous membranes and the geometry of nanowires were studied using a scanning electron microscope. The magnetic properties of nanowire arrays were studied using a vibration magnetometer and micromagnetic modeling.