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We have used Auger electron spectroscopy to study the diffusive spreading and adsorption of pure Bi and Pb–11 at.%Bi precursing films on Cu(111) surfaces, from droplets of the respective materials. The Bi diffusion coefficient (DBi) increases with Bi-coverage. However, in the intermediate coverage range, DBi remains approximately constant, which is presumably due to the formation of an ordered Bi...
The diffusion of Pb away from partially wetting Pb particles on the Cu(111) surface to form so-called precursing films has been studied by means of Auger electron spectroscopy at temperatures in the range 353-373 K. These films achieve a maximum thickness of about 0.85 Pb monolayers (0.85 ML) at the particle triple line. The surface concentration profiles of Pb in the vicinity of particles have been...
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