Abstract
The elastic lattice Green's function for a simple cubic substrate with a semi-infinite thickness is obtained numerically in the isotropic case. This allows us to replace the bulk substrate by a single surface layer in the study of epitaxial adsorption. Its application to the homoepitaxial adsorption systems with various surface defects, as adatoms, steps or islands, results in the evaluation of their formation and interaction energies. Interactions approach to the asymptotic limit by the continuum elasticity theory even at short distances, except the step–step interaction. The latter has a large transient region before the final asymptotics sets in. This shows that the continuum elasticity is insufficient to describe the structural details of the atomic scale when forces are distributed over two atomic layers, such as, at the step edge.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.