State Key Laboratory of Superhard Materials, Jilin University, Changchun, People's Republic of China.
Nanotechnology. 2011 Mar 25;22(12):125603. doi: 10.1088/0957-4484/22/12/125603. Epub 2011 Feb 17.
High-density, vertically aligned CrO(2) nanowire arrays were obtained via atmospheric-pressure CVD assisted by AAO templates. The CrO(2) nanowire arrays show remarkably enhanced coercivity compared with CrO(2) films or bulk. It was found that the length of the nanowires is greatly influenced by the pore diameter of the AAO template used. The growth mechanism and the pore size dependence of the CrO(2) nanowire arrays are discussed. The present method provides a useful approach for the synthesis of CrO(2) nanowire arrays. Such highly ordered nanowire arrays within an AAO template may have important applications in ultrahigh-density perpendicular magnetic recording devices and the mass production of spintronic nanodevices.
通过 AAO 模板辅助的常压 CVD，获得了高密度、垂直排列的 CrO(2)纳米线阵列。与 CrO(2)薄膜或块体相比，CrO(2)纳米线阵列表现出显著增强的矫顽力。结果发现，纳米线的长度受所用 AAO 模板的孔径的极大影响。讨论了 CrO(2)纳米线阵列的生长机制和孔径依赖性。本方法为 CrO(2)纳米线阵列的合成提供了一种有用的途径。AAO 模板内的这种高度有序的纳米线阵列可能在超高密度垂直磁记录器件和自旋电子纳米器件的大规模生产中具有重要应用。
