Adatom ascending at step edges and faceting on fcc metal (110) surfaces |
| |
Authors: | Zhu Wenguang Buatier de Mongeot Francesco Valbusa U Wang E G Zhang Zhenyu |
| |
Institution: | International Center for Quantum Structures and Institute of Physics, Chinese Academy of Sciences, Beijing 100080, People's Republic of China. |
| |
Abstract: | Using first-principles total-energy calculations, we show that an adatom can easily climb up at monatomic-layer-high steps on several representative fcc metal (110) surfaces via a place exchange mechanism. Inclusion of such novel adatom ascending processes in kinetic Monte Carlo simulations of Al(110) homoepitaxy as a prototypical model system can lead to the existence of an intriguing faceting instability, whose dynamical evolution and kinetic nature are explored in comparison with experimental observations. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|