Investigations of Microstructures and Magnetic Properties through Off-time between Pulses and Controlled Cu Content in Pulse Electrodeposited NiCu Nanowires

NiCu alloy nanowires arrays were embedded into the anodic aluminum oxide (AAO) template by ac-pulse electrodeposition. Different off-time were used in electrolyte with constant concentration of Ni and Cu and acidity of 3. The effect of deposition parameters on alloy contents was investigated by studying the microstructure and magnetic properties of as-deposited NiCu alloy nanowires. Atomic force microscopy, x-ray analysis were employed to investigate the morphology and microstructure of prepared sample. Vibrating sample magnetometer was also used in order to study the magnetic properties of nanowires array. The obtained results revealed, with increase in off-time, Cu non-magnetic element content increases through electroless process.