The influences of electrodeposited temperature on the morphology and magnetic properties of Fe/Fe-dimethylsulfoxide nanocables
The influences of electrodeposited temperature on the morphology and magnetic properties of Fe/Fe-dimethylsulfoxide nanocables
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DOI：
10.1016/j.electacta.2008.02.102
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发表时间：
2008-06
影响因子：
6.6
通讯作者：
Junli Fu;D. Gao;Yan Xu;D. Xue
中科院分区：
文献类型：
--
作者：
Junli Fu;D. Gao;Yan Xu;D. Xue
在40°C下，在具有17 g/l FeCl 3的二甲基亚砜（DMSO）溶液中，将纳米电缆阵列电沉积到阳极氧化铝模板中。透射电子显微镜的结果清楚地表明，纳米电缆由浅的Fe-DMSO鞘和暗的Fe纳米线核心。Fe纳米线的核心为bcc结构，择优取向为（110），Fe-DMSO的鞘层为Fe与DMSO的配位化合物。由于Fe-DMSO间的化学键在高温溶液中不稳定，因此随着电沉积温度的提高，Fe-DMSO含量减少，Fe含量增加。不同沉积温度下的纳米电缆阵列均表现出明显的各向异性，易磁化轴平行于纳米电缆的长度方向。当外加电场沿着纳米电缆方向施加时，随着电沉积温度的升高，纳米电缆的各向异性、垂直度和矩形度增大。
Arrays of nanocables were electrodeposited into anodic aluminum oxide template at 40°C in the solution of dimethylsulfoxide (DMSO) with 17g/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 (110) 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.