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arXiv 1403.4372cond-mat.mtrl-scicond-mat.stat-mech
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多组分体系亚单层表面生长的自洽速率理论

Self-consistent rate theory for submonolayer surface growth of multi-component systems

Mario Einax, Philipp Maass, Wolfgang Dieterich

摘要:

自洽速率理论的表面生长在亚单层制度推广从单组分到多组分系统,这是由不同类型的原子或分子的共沉积。作为一个新的功能,该理论需要引入对密度分布,使不同物种之间的反应的对称处理。该方法是明确开发的二元系统和测试对动力学蒙特卡罗模拟。使用一组减少的速率方程,只有几个微分方程需要求解,以获得良好的定量预测岛和吸附原子密度,以及不稳定的集群的密度。

英文摘要:

The self-consistent rate theory for surface growth in the submonolayer regime is generalized from mono- to multi-component systems, which are formed by codeposition of different types of atoms or molecules. As a new feature, the theory requires the introduction of pair density distributions to enable a symmetric treatment of reactions among different species. The approach is explicitly developed for binary systems and tested against kinetic Monte Carlo simulations. Using a reduced set of rate equations, only a few differential equations need to be solved to obtain good quantitative predictions for island and adatom densities, as well as densities of unstable clusters.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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