Fabrication and Mossbauer study of arrays of Fe1-xNix nanowires

Arrays of Fe1-xNix(0 < x less than or equal to 0.32) alloys nanowires with 16nm in diameter and 4 mum in length have been successfully fabricated by e lectrochemical method in anodic alumina oxide template. In the region of lo w concentration Ni (0 < x less than or equal to 0.32), the structures of al loy nanowires are all bcc structure with a preferred crystallographic orien tation [110]. Mossbauer study shows that the direction of the moments of ir on atoms in the nanowire is parallel to the axis of the nanowire, and the h yperfine field of the sites of iron atoms has a little variation with incre asing Ni content, which is consistent with the bulk Fe1-xNix alloy.