Magnetic Properties of Ni Nanowires in Porous Anodic Alumina Matrix

— This paper focuses on the investigation of magnetic properties of Ni nanowire arrays synthesized using Al 2 O 3 porous template. Porous alumina samples were obtained by double electrochemical anodizing of the prepared foil in 0.5 M oxalic acid, at a voltage of 60 V and a temperature of 25°C and examined by scanning electron microscopy. The pore diameter distribution maximums is about 85 nm. Nanowires were electrodeposited in a 2-electrode electrochemical cell into prepared matrices in a galvanostatic mode. Studies of the surface of porous membranes and the geometry of nanowires were carried out using scanning electron microscope. Investigation of the magnetic properties of Ni nanowires arrays were performed using vibrating magnetometer. Aspect ratio of Ni nanowires is about 250.