有序Ni纳米线阵列的制备及其磁滞回线  

Preparation of the Organized Nanowire Array of Nickel and Its Magnetization Hysteresis Loops

作　　者：潘谷平[1] 薛宽宏[1] 孙冬梅[1] 徐士民[1] 潘明虎[2] 鹿牧[2] 邱齐 李光来 王广厚[2] 

机构地区：[1]南京师范大学化学系,南京210097 [2]南京大学团体微结构物理实验室,南京210093

出　　处：《Chinese Journal of Chemical Physics》1999年第6期675-680,共6页化学物理学报（英文）

基　　金：南京大学固体微结构物理实验室开放课题重点项目;江苏省自然科学基金

摘　　要：由铝在１５％硫酸介质中进行电化学氧化而得到的多孔Ａｌ２Ｏ３是制备有序纳米线阵列的一种很好的样模材料．在该样模中电沉积的有序Ｎｉ纳米线阵列排布规则、有序．磁滞回线测量表明，长径比为４００的Ｎｉ纳米线阵列在垂直于Ａｌ２Ｏ３表面方向（即平行于Ｎｉ纳米线方向）的矫顽力为８３１Ｏｅ，矩形度达０．９１，具有显著的磁单轴各向异性和磁单畴特性．An organized nanowire array can be prepared by means of the template of porousalumina obtained from aluminum electrooxidation in an aqueous solution of 15% sulfuric acid.The army of Ni nanowires electro-deposital in the template is highly organized and arrangedregularly. The measurements of magnethation hysteresis loops show that the nickel nanowirearray, with the diameter of 10 urn and the asped ratio of 400, possesses the coerdvity of 831Oe,in the diration perpendicular to the alulnina surface (ie. along the length of nickel nanowires),and the squarenes of 0.91, charaCteristic of marked magnetic single--axis anisotropy and theproperty of single domain.

关 键 词：多孔氧化铝 磁滞回线 镍纳米线 样模法 

分 类 号：O614.310.6[理学—无机化学] O614.813[理学—化学]