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
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)