Structural and Magnetic Properties of Electrodeposited Ni₇₀Fe₃₀ Nanowire Array

XU Jinxia1,WANG Keyu2 (1.Department of Materials Science and Engineering,Hohai University,Nanjing 210098,China; 2.Analysis&Test Center,Nanjing Normal University,Nanjing 210097,China)

摘 要：Ordered Ni 70 Fe 30 nanowire array was fabricated in a porous alumina template by alternating current electrodeposition.The structural and magnetic properties of the as-obtained nanowire array were investigated by SEM,TEM,XRD,EDS and VSM.The results indicate that the as-obtained Ni 70 Fe 30 nanowires exhibit a diameter of about 69.9 nm and aspect ratio of more than 60.Meanwhile,a preferred orientation[110] of bcc lattice was observed.The as-obtained nanowire array has an obvious magnetic anisotropy,of which the easy direction is perpendicular to the surface of the array.Moreover,after annealed,the Ni 70 Fe 30 nanowire array exhibits an enhanced magnetic anisotropy.

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