Abstract

Ordered Nd/Co100 and Nd/Co200 core/shell nanowire arrays with lengths of ~ 10 μm and diameters of 100 nm and 200 nm were fabricated by two-step electrodeposition into anodic alumina oxide templates. Co-hcp phases were observed in the Nd/Co100 and Nd/Co200 nanowires. Hysteresis curves obtained from the Nd/Co100 and Nd/Co200 nanowires showed that the squareness ratio of the parallel nanowire long axis was greater than that of the perpendicular nanowire long axis. The magnetic properties indicated that the easy axis was parallel to the long axis. The coercivity and parallel squareness ratio in the Nd/Co200 nanowires were greater than those in the Nd/Co100 nanowires, which demonstrated that the Nd/Co200 nanowires exhibited hard magnetism behavior.

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