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Surface Alloying and Surfactant Action of Sb ON Ag (111)
Published online by Cambridge University Press: 15 February 2011
Abstract
We report ab initio calculations for Sb and Ag adsorption on Ag (111): evidence is found for substitutional adsorption and surface segregation of Sb, and for the formation of a disordered surface Sb-Ag alloy. The average diffusion barrier for Ag is enhanced on Sb-covered Ag (111), which favors the formation of a high density of small-sized islands: this is suggested to be the cause of the surfactant action of Sb on Ag reported recently.
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- Copyright © Materials Research Society 1994
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