中国物理B ›› 2010, Vol. 19 ›› Issue (6): 66801-066801.doi: 10.1088/1674-1056/19/6/066801
吴黎黎, 吴锋民
Wu Li-Li(吴黎黎)† and Wu Feng-Min(吴锋民)
摘要: A kinetic Monte Carlo simulation is performed in order to study the effect of Sb atoms as a surfactant on the growth of Ag on Ag(111). In our model the repulsive mechanism in which the surfactant Sb atoms repel diffusing Ag adatoms, and the exchange mechanism between Ag and Sb atoms, are considered. Our simulations show that the effects of Sb atoms for Ag/Ag(111) growth system are mainly to increase the chances for Ag atoms to overcome the Ehrlich--Schwoebel barrier both in the interlayer growth and along the edge diffusion. The influence of the coverage of Sb atoms and substrate temperature on the growth of Ag/Sb/Ag(111) is discussed.
中图分类号: (Statistical mechanics of adsorbates)