Evolution of Thin-Film and Surface Structure and Morphology: Proceedings of the MRS 1994 Fall Meeting
Scanning tunneling microscopy has shown that large, two-dimensional Ag clusters undergo observable diffusion on Ag(100). The variation of the diffusion coefficient with cluster size in the range studied, 100 to 540 atoms per cluster, indicates that two-dimensional evaporation-condensation is the main mechanism of cluster diffusion. The experimental data consistently show evidence for a backward-correlation in the cluster motion. The meaning and origin of this correlation is discussed.
Materials Research Society
Wen, J.-M.; Evans, James W.; Chang, S.-L.; Burnett, Joseph W.; and Thiel, Patricia A., "Surface Diffusion of Large Ag Clusters on Ag(100)" (1995). Ames Laboratory Conference Papers, Posters, and Presentations. 64.