The influences of electrodeposited temperature on the morphology and magnetic properties of Fe/Fe–dimethylsulfoxide nanocables

Arrays of nanocables were electrodeposited into anodic aluminum oxide template at 40 °C in the solution of dimethylsulfoxide (DMSO) with 17 g/l FeCl3. The transmission electron microscope result clearly shows that the nanocables consist of light Fe–DMSO sheaths and dark Fe nanowire cores. The Fe nanowire cores are bcc structure with a preferred orientation of (1 1 0) and the sheaths of Fe–DMSO are coordination compounds of Fe with DMSO. The chemical bonds of Fe–DMSO are instable at high-temperature solution, so the content of Fe–DMSO decreases and that of Fe increases with the enhancing of electrodeposited temperature. All arrays of nanocables at different electrodeposited temperatures show an obvious anisotropy with the easy magnetizing axial parallel to the length of nanocable. With the applied field along the nanocable, the anisotropy, coercivity and squareness increase with the raise of electrodeposited temperature.