Chemistry, Mathematics, Ames Laboratory
Journal or Book Title
Physical Review B
Scanning-tunneling microscopy studies combined with atomistic modeling for Ag/Ag(100) homoepitaxy reveal complex growth behavior at 300 K: initial smooth growth up to ∼25 ML, where three-dimensional (3D) mounds develop from 2D islands; then an extended regime of mound steepening for ∼1000 ML producing unexpected rough growth; and finally an asymptotic regime with cooperative mound ordering and coalescence dynamics quite distinct from that in systems with up-down symmetry. The steepening regime is compressed upon lowering temperature, so while initial growth is rougher, asymptotic growth is actually smoother.
American Physical Society
Caspersen, K. J.; Layson, Anthony R.; Stoldt, C. R.; Fournée, V.; Thiel, Patricia A.; and Evans, James W., "Development and ordering of mounds during metal(100) homoepitaxy" (2002). Chemistry Publications. 58.