Electrodeposited CoNiP Hard Magnetic Nanowires in Polycarbonate Membrane

An array of CoNiP magnetic nanowires were grown in polycarbonate membrane using potentiostatic electrodeposition technique under three electrodes configuration. The commercially available track etched polycarbonate membranes of thickness 6 mum with pore size of 50 nm diameter were used in these experiments. The electrolyte bath consists of NiCl₂-6.81 g/l, CoCl₂-2.76 g/l, NaH₂ PO₂-2.59 g/l, H ₃BO₃-2.49 g/l, NaCl-2.20 g/l, Saccharin-0.8 g/l was used for deposition of CoNiP magnetic nanowires. The main aim of this work focuses on growth conditions, structural and magnetic properties of the CoNiP nanowires. In this context first we observed three different growths of nanowire lengths 1.21 mu m, 4.31 mu m and 6 mu m at three different deposition times 30 min, 60 min, and 90 min, respectively. The X-ray diffraction patterns of CoNiP nanowires have shown the intermixture of fcc and hcp phases. The structural properties of the CoNiP nanowires were observed using scanning electron microscope (SEM). The magnetic properties of the CoNiP nanowires were observed using vibrating sample magnetometer (VSM), which show hard magnetic properties with no preferential magnetization direction of the nanowires having high coercivity values around 500 Oe.