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交流电化学沉积FeCo合金纳米线阵列及其磁性能研究

王学华 陈归 蔡鹏 付萍 李承勇 杨亮 曹宏

材料工程Issue(3):79-82,88,5.
材料工程Issue(3):79-82,88,5.

交流电化学沉积FeCo合金纳米线阵列及其磁性能研究

Magnetic Properties of FeCo Alloy Nanowire Arrays Synthesized by AC Electrodeposition in AAO Template

王学华 1陈归 1蔡鹏 2付萍 1李承勇 1杨亮 3曹宏1

作者信息

  • 1. 武汉工程大学材料科学与工程学院,武汉430073
  • 2. 华中科技大学武汉光电国家实验室,武汉430074
  • 3. 南京大学化学化工学院,南京210093
  • 折叠

摘要

Abstract

Anodic aluminum oxide (AAO) membranes with highly ordered pores were prepared by secondary anodic oxidation. By using alternating current (AC) electrochemical deposition, FeCo alloy nanowire arrays were fabricated in anodic aluminum oxide (AAO) membranes in different electrolytes with variable molar ratios of Fe2+/Co2+. The morphology, microstructure and magnetic properties of FeCo alloy nanowires were characterized by TEM, FE-SEM, XRD and VSM, respectively. The results indicate the FeCo nanowire arrays are uniform and regular, which corresponds to the diameter of the nanochannel of the AAO membrane, and the degree of pore filling rate is very high throughout the template. XRD and TEM results show that the crystal structure of FeCo alloy nanowires has [110] preferred orientation. VSM results show the FeCo nanowire arrays fabricated in different electrolytes has a strong perpenticular magnetic anisotropy, whose easy axis was parallel to the nanowires. The magnetic properties of FeCo nanowire arrays changed with their compositions, and the variation of co-ercivity and squareness of all samples was discussed in detail.

关键词

多孔氧化铝模板/电化学沉积/FeCo合金纳米线阵列/磁各向异性

Key words

porous anodic aluminum oxide template/ electrochemical deposition/ FeCo alloy nanowire arrays/magnetic anisotropy

分类

化学化工

引用本文复制引用

王学华,陈归,蔡鹏,付萍,李承勇,杨亮,曹宏..交流电化学沉积FeCo合金纳米线阵列及其磁性能研究[J].材料工程,2012,(3):79-82,88,5.

基金项目

武汉市青年科技晨光计划资助项目(20065004116-35) (20065004116-35)

材料工程

OA北大核心CSCDCSTPCD

1001-4381

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