Effect of mesoscopic relaxations on diffusion of Co adatoms on Cu(111)
- 14 November 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 68 (20) , 205411
- https://doi.org/10.1103/physrevb.68.205411
Abstract
We demonstrate that mesoscopic relaxations in systems with low migration barriers significantly affect atomic motion in the vicinity of adsorbed islands. Atomic-scale calculations for Co islands and steps on Cu(111) reveal that adsorbate-induced strain in the substrate makes surface diffusion of Co adatom anisotropic. As the adatom approaches the island side, the migration barrier exhibits strong oscillations. Large energy barriers for the attachmnent of adatoms to islands are predicted by our calculations.Keywords
This publication has 33 references indexed in Scilit:
- Long-range adsorbate interactions mediated by a two-dimensional electron gasPhysical Review B, 2002
- Self-Assembly of One-Dimensional Surface Structures: Long-Range Interactions in the Growth of Ir and Pd on W(110)Physical Review Letters, 2001
- Island Nucleation in Thin-Film Epitaxy: A First-Principles InvestigationPhysical Review Letters, 2000
- Dynamics of Surface Migration in the Weak Corrugation RegimePhysical Review Letters, 2000
- Microscopic view of epitaxial metal growth: nucleation and aggregationSurface Science Reports, 1998
- Atomistic Processes in the Early Stages of Thin-Film GrowthScience, 1997
- Room-Temperature Instability of Co/Cu(111)Physical Review Letters, 1994
- Adatom motion to lattice steps: A direct viewPhysical Review Letters, 1993
- Predicted diffusion rates on fcc (001) metal surfaces for adsorbate/substrate combinations of Ni, Cu, Rh, Pd, Ag, Pt, AuSurface Science, 1992
- Rate equation approaches to thin film nucleation kineticsPhilosophical Magazine, 1973