CoPt/Ag nanocomposites with (001) texture
CoPt/Ag nanocomposites with (001) texture
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DOI：
10.1063/1.1397762
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发表时间：
2001-08-27
影响因子：
4
通讯作者：
Hadjipanayis, GC
中科院分区：
文献类型：
--
作者：
Karanasos, V;Panagiotopoulos, I;Hadjipanayis, GC
采用磁控溅射法制备了具有四方晶系（L1（0））结构的CoPt/Ag纳米复合材料。研究了薄膜厚度、双层膜厚度、CoPt体积分数和退火条件对织构的影响。厚度小于15 nm的薄膜由具有（001）织构的岛组成，而随着厚度的增加，岛聚结成连续的薄膜并且出现（111）织构。在薄膜厚度范围内，微应变最小，（001）织构最佳，表明应变能提供了（001）生长织构的驱动力。（001）织构随着CoPt体积分数的增加而改善，但在95体积%以上消失，表明Ag的存在在（001）织构的发展中起重要作用。(C)2001年美国物理学会。
CoPt/Ag nanocomposites with the tetragonal (L1(0)) structure have been prepared by magnetron sputtering. The dependence of texture on film thickness, bilayer thickness, CoPt volume fraction, and annealing conditions is investigated. Films with a thickness below 15 nm consist of islands with (001) texture while as the thickness increases, the islands coalesce into a continuous film and the (111) texture appears. Microstrain is minimized in the range of film thickness where the (001) texturing is optimum indicating that strain energy provides the driving force of (001) growth texturing. The (001) texture improves with CoPt volume fraction for all annealing times but disappears above 95 vol % indicating that the existence of the Ag plays an important role in the development of the (001) texture. (C) 2001 American Institute of Physics.