Continuum Model for Low Temperature Relaxation of Crystal Steps

O. Pierre-Louis
2001 Physical Review Letters  
High and low temperature relaxation of crystal steps are described in a unified picture, using a continuum model based on a modified expression of the step free energy. Results are in agreement with experiments and Monte Carlo simulations of step fluctuations and monolayer cluster diffusion and relaxation. In an extended model where mass exchange with neighboring terraces is allowed, step transparency and a low temperature regime for unstable step meandering are found.
doi:10.1103/physrevlett.87.106104 pmid:11531491 fatcat:55mol3isizfptpyg5uerdtdpne