From Co/Pt multilayered nanowires to Co-Pt alloy nanowires: structural and magnetic evolutions with annealing temperatures

被引：14

作者：

Liu, Li-Feng

Xie, Si-Shen

Zhou, Wei-Ya

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China

来源：

JOURNAL OF PHYSICS D-APPLIED PHYSICS | 2009年 / 42卷 / 20期

基金：

中国国家自然科学基金;

关键词：

COXPT1-X NANOWIRES; ARRAYS; ELECTRODEPOSITION; FABRICATION; MICROSTRUCTURE; NANOSTRUCTURES; FERROMAGNETISM; ANISOTROPY; TEMPLATE; PROPERTY;

D O I：

10.1088/0022-3727/42/20/205002

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Co/Pt multilayered (ML) nanowires were prepared by template-assisted pulsed electrodeposition. Structural and magnetic evolutions of the deposited ML nanowires upon annealing in a hydrogen atmosphere were studied by transmission electron microscopy, x-ray diffractometry and magnetometry. It was found that the deposited nanowires undergo a morphological change from multilayers to continuous and dense alloy wires with increasing annealing temperature. The fraction and the grain size of the f.c.t. Co-Pt ordered phase were also found to increase with annealing temperature, giving rise to a markedly enhanced magnetic performance of the annealed nanowires. Our study provides an alternative approach, apart from direct template-based electrodeposition, to the fabrication of Co-Pt alloy nanowires with tunable structures and magnetic properties.

引用

页数：5

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