2001/10/31 by Ellák Somfai, E. Somfai, R. van Gastel +7
Earth and Planetary Sciences · Materials Science · Physics and Astronomy · #Microstructure and mechanical properties #Theoretical and Computational Physics #cond-mat.mtrl-sci #cond-mat.stat-mech #nanoparticles nucleation surface interactions
paper · pdf · doi:10.1016/s0039-6028(02)02251-3
published as Surf. Sci. 521, 26 (2002) · 13 pages, 4 figures
arxiv created 2001/10/31 · openalex publication_date 2002/12/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04
We develop a version of the vacancy mediated tracer diffusion model, which follows the properties of the physical system of In atoms diffusing within the top layer of Cu(001) terraces. This model differs from the classical tracer diffusion problem in that (i) the lattice is finite, (ii) the boundary is a trap for the vacancy, and (iii) the diffusion rate of the vacancy is different, in our case strongly enhanced, in the neighborhood of the tracer atom. A simple continuum solution is formulated for this problem, which together with the numerical solution of the discrete model compares well with our experimental results.