作者
Yong Lu, Cuiping Wang, Yipeng Gao, Rongpei Shi, Xingjun Liu, Yunzhi Wang
发表日期
2012/8/24
期刊
Physical review letters
卷号
109
期号
8
页码范围
086101
出版商
American Physical Society
简介
Drastically different two-phase microstructures have been reported for alloy epitaxial films, including self-organized nanoscale concentration modulations of vertical and lateral stripes. To understand the disparity of these microstructures, we study their formation mechanisms via spinodal decomposition during film deposition with the aid of computer simulations. Based on the simulation results, a microstructure map is established that describes relationships among the morphology of self-organized two-phase microstructure, initial alloy composition, and deposition rate relative to the phase separation kinetics in the film. Depending on the deposition rate relative to the kinetics of spinodal decomposition in the film, both laterally and vertically modulated microstructures could be obtained.
学术搜索中的文章
Y Lu, C Wang, Y Gao, R Shi, X Liu, Y Wang - Physical review letters, 2012