Microstructure Map for Self-Organized Phase Separation during Film Deposition
Date
2012-08-20Author
Lu, Yong
Wang, Cuiping
王翠萍
Gao, Yipeng
Shi, Rongpei
Liu, Xingjun
刘兴军
Wang, Yunzhi
Collections
- 化学化工-已发表论文 [14469]
Abstract
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.
Citation
PHYSICAL REVIEW LETTERS,2012,109(8)URI
http://dx.doi.org/10.1103/PhysRevLett.109.086101WOS:000307711300013
https://dspace.xmu.edu.cn/handle/2288/14907