电化学沉积Fe单晶纳米线生长中的取向控制  

Control of the preferred orientation in electrodeposited single-crystal Fe nanowires

作　　者：胡海宁[1] 陈京兰[1] 吴光恒[1] 

机构地区：[1]中国科学院物理研究所北京凝聚态物理国家实验室,北京100080

出　　处：《物理学报》2005年第1期389-392,共4页Acta Physica Sinica

基　　金：国家自然科学基金(批准号 :5 0 3 7110 1)资助的课题~~

摘　　要：利用电化学沉积方法 ,发现了一种能够动态地控制铁纳米线生长方向的沉积方法 ,利用该方法沉积了包括[110 ]取向 ,[2 0 0 ]取向及非晶态三种结构和取向的一维Fe纳米线阵列 .对于三种纳米线阵列 ,测量了它们的磁特性 ,分析发现具有 [2 0 0 ]择优取向纳米线阵列的方形度 ,各向异性特性和矫顽力都比 [110Three different-structured Fe nanowires, including preferred orientations of [110], [200] and morphology nanowires, were electrodeposited by a method of changing the pH value of the aqueous bath. And the [200]-preferred Fe nanowire was reported for the first time so far as we know. Magnetic properties of the three kinds of nanowires were measured by superconducting quantum interference devics(SQUID) magnetometer. Compared with the [110] preferred nanowire array, the [200] preferred one has a high aspect ratio with improved anisotropy and coercivity. It is first time that the magnetization of Fe nanowire arrays with the crystal anisotropy and shape anisotropy in the same direction has been reported.

关 键 词：电化学沉积 一维 单晶 沉积方法 磁特性 纳米线阵列 发现 择优取向 非晶态 用电 

分 类 号：TB383[一般工业技术—材料科学与工程]