Anisotropic elastic analysis and atomistic simulation of adatom-adatom interactions on solid surfaces

摘要

We employ atomistic computer simulations and anisortropic elastic analysis to investigate the nature of adatom-atadtom interactions on solid surfaces. Point dipole forces are used to model the elastic field generated by adatoms on a surface. In agreement with previous results, the anisotropic elastic theory shows that the adatom-adatom interaction energy has a strong angular dependence and can change sign with angle.