Complex behavior in a simple system: low temperature Ag/Ag(100) growth revisited
نویسندگان
چکیده
The experimentally observed non-monotonic temperature-dependence of the surface roughness in Ag/Ag(100) growth over the temperature range T = 55−180 K is examined. In general, we find that the surface roughness depends sensitively on a competition between a variety of low-barrier processes including downward funneling, edge-zipping and diffusion, atom-attraction, and interlayer diffusion at kinks. By taking these processes into account, along with the attraction of depositing atoms to microprotrusions, excellent agreement with experiment is obtained over the entire temperature range.
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