中文摘要：

采用恒电流沉积方法，在多孔阳极氧化铝（AAO）模板中制备出了具有单晶结构的Ni纳米线阵列．采用扫描电子显微镜（SEM）、透射电子显微镜（TEM）和X射线衍射（XRD）技术对制备的Ni纳米线阵列的形貌及结构进行了表征、利用振动样品磁强计（VSM）对单晶Ni纳米线阵列的磁性能进行了研究．结果表明，单晶镍纳米线阵列的易磁化方向为纳米线轴向，并且与多晶纳米线相比显示出了更高的矫顽力．直径为30nm的纳米线具有较高的矫顽力（8．236×10^4A/m）和较高的剩磁比（Mr=0.94M。）．

英文摘要：

Single-crystal Ni nanowire arrays were prepared by employing the porous AAO template by using the electrodeposition technique at a constant current of 2.0 mA/cm^2. The morphology and microstructure of Ni nanowire arrays were studied by SEM, TEM and XRD techniques. The magnetic properties of the single-crystal Ni nanowire arrays were investigated by VSM. The results reveal that the single-crystal Ni nanowire arrays show a perpendicular magnetic anistory and have a preferential magnetic orientation along the wire axis. The magnetic properties of the single-crystal Ni nanowire arrays are better than those of polycrystal nanowire arrays.