Chemistry, Mathematics, Ames Laboratory
Journal or Book Title
Physical Review Letters
Coarsening of Ag films on Ag(100) at room temperature occurs primarily via diffusion-mediated coalescence of two-dimensional adatom clusters, rather than by Ostwald ripening, up to a coverage of 0.65 monolayer. Above 0.8 monolayer, vacancy clusters coarsen primarily via Ostwald ripening, due to their much lower diffusivity. An asymmetric transition region separates these two regimes, characterized by a near-percolating structure which undergoes self-similar coarsening.
American Physical Society
Wen, J.-M.; Evans, James W.; Bartelt, M. C.; Burnett, Joseph W.; and Thiel, Patricia A., "Coarsening Mechanisms in a Metal Film: From Cluster Diffusion to Vacancy Ripening" (1996). Chemistry Publications. 79.