COMPATIBLE CONTINUUM AND ATOMISTIC MODELS OF SURFACE DIFFUSION
A simplified stochastic atomistic model for high curvature surface diffusion is proposed based on a simple triangular lattice.An equivalent continuum model is derived from the atomic model and the similarities and the differences between them compared.The fundamental features of growth controlled by surface evolution are reproduced,mainly the natural appearance of atomic facets at lower temperatures.It is found that randomness and biasing need to be added to the continuum to reproduce the behavior of the atomic model at low temperatures.
kinetic Monte Carlo Master equation surface diffusion atomistic-continuum model
S.P.A.Gill K.Joiley
Dept of Engineering,University of Leicester,University Road,Leicester,UK,LE1 7RH.
国际会议
第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)
安徽黄山
英文
266-271
2008-06-03（万方平台首次上网日期，不代表论文的发表时间）