河北师范大学学报—

期刊信息

刊名：河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
主办：河北师范大学
ISSN： 1000-5854
CN： 13-1061/N
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Co-Pd纳米管阵列的制备及其磁特性

刘海瑞¹

李玉山²

路庆凤¹

1. 河南师范大学物理与信息工程学院, 河南新乡 453007;
2. 菏泽学院物理系, 山东菏泽 274015
DOI：

On Fabrication and Magnitic Properties of Co-Pd Nanotube Arrays

LIU Hai-rui¹, LI Yu-shan², LU Qing-feng¹

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摘要/Abstract

摘要：

用直流电化学沉积方法,通过改变沉积电压,在多孔阳极氧化铝(AAO)模板中制备了Co-Pd合金纳米管阵列,分别用扫描电镜(SEM)和振动样品磁强计(VSM)对样品的形貌和磁学性质进行了测试.SEM结果显示,纳米管阵列均匀有序;样品磁性测试结果表明,外场垂直于纳米管轴时的剩磁比(M_r /M_s)比外场平行于纳米管时的剩磁比大,且矫顽力(H_c)随着Co含量的增加而增加.在真空500℃退火后,样品矫顽力有明显增大.

Abstract：

Co-Pd alloy nanotubes have been grown into self-synthesised anodic alumina oxide (AAO) template by DC-elect rodeposition. T he morphology and magnetic propert ies have been measured by scanning elect ronic microscope (SEM) and vibrating sample magnetometer (VSM). SEM has shown that the nanotubes are in arrays with uniform diameter. VSM results indicate that the remanence ratio (M_r / M_s) is larger when magnetic field is perpendicular to the axis of the nanotube arrays compared to that when the magnetic field is parallel to the axis of tubes. The coercivity (H_c) of the nanotube arrays increases with an enhancement of Co content. There is a largely increase in the values of H_c after annealing at 500 e.

关键词

关键词： Co-Pd合金纳米管阵列 ; 剩磁比 ; 矫顽力 ; 退火

Key words： Co-Pd nanotube arrays ; remanence ratio ; coercivity ; annealing

参考文献 14

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