Compositional control of FexPt(1−x) nanowires by electrodeposition
Compositional control of FexPt(1−x) nanowires by electrodeposition
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DOI:
10.1063/1.3537941
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发表时间:
2011-03
影响因子:
3.2
通讯作者:
Jing Xu;Zhuang-jian Zhang;B. Ma;Q. Jin
中科院分区:
文献类型:
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作者:
Jing Xu;Zhuang-jian Zhang;B. Ma;Q. Jin
FexPt(1−x) nanowire arrays embedded in porous alumina membranes with controlled diameters and high aspect ratios were fabricated by the pulse electrodeposition method in a novel bath with a simple composition. The composition of FexPt(1−x) nanowires can be highly controlled by the negative deposition voltage and the pulse duration. A growth mode of alternating Fe and Pt composition within wires is observed for electrodeposition in different periods of pulse time. The space separation between the iron-rich layer and the platinum-rich layer contributes to the relatively low coercivity of FexPt(1−x) nanowire arrays with an atomic ratio of 1:1.