Influence of adatom interactions on second layer nucleation
arXiv:cond-mat/0203403 · doi:10.1103/PhysRevB.66.073402
Abstract
We develop a theory for the inclusion of adatom interactions in second layer nucleation occurring in epitaxial growth. The interactions considered are due to ring barriers between pairs of adatoms and binding energies of unstable clusters. The theory is based on a master equation, which describes the time development of microscopic states that are specified by cluster configurations on top of an island. The transition rates are derived by scaling arguments and tested against kinetic Monte-Carlo simulations. As an application we reanalyze experiments to determine the step edge barrier for Ag/Pt(111).
4 pages, 4 figures
References in corpus (6)
- Island nucleation in thin-film epitaxy: A first-principles investigation
- Island nucleation in the presence of step edge barriers: Theory and applications
- Density-functional theory calculations of hopping rates of surface diffusion
- Nucleation on top of islands in epitaxial growth
- Scaling regimes for second layer nucleation
- Comment on ``Determination of Interlayer Diffusion Parameters for Ag(111)''