摘要
采用Kinetic Monte Carlo(KMC)方法对描述分子束外延生长(MBE)的1+1维Wolf-Villain模型进行大尺寸和长生长时间的数值模拟研究,以消除渡越行为的影响.计算得到整体和局域标度指数.结果显示,在所模拟的空间和时间尺度范围内,1+1维Wolf-Villain模型仍呈现出固有奇异标度行为.这一结论与López等人最近的理论分析结果不一致.
1 ＋ 1 dimensional Wolf-Villain model for molecular-beam epitaxy（MBE） growth is investigated with kinetic Monte-Carlo simulation in large scale and during long growth time so that crossover effects are eliminated. Global and local dynamic exponents are obtained. It is shown that Wolf-ViUain model in 1 ＋ 1 dimensions exhibits intrinsic anomalous scaling behavior in time and length simulated. The result is inconsistent with theoretical analysis by Lopez.
出处
《计算物理》
EI
CSCD
北大核心
2009年第2期287-292,共6页
Chinese Journal of Computational Physics
基金
国家自然科学基金(批准号:10674177)
教育部留学回国人员科研启动基金(批准号:200318)资助项目
