Studies of the Atom-Surface Interaction and Charge Exchange in Sputtering

  • N. D. Lang
Conference paper
Part of the Springer Series in Surface Sciences book series (SSSUR, volume 4)


We begin with a brief outline of the calculation of the ground-state properties of an atom interacting with a metal surface a fixed distance away. [1] We simplify the description of the substrate by using the jellium model to represent it: that is, the semi-infinite lattice of positive ions of the metal is smeared out into a semi-infinite homogeneous positive background. This model eliminates much of the detail of the substrate (which is now specified only by the value of its average electron density), but it is able to represent many of the properties of the metal that will interest us. [1] We use the density-functional theory of inhomogeneous electron systems [2] to analyze this model, with the commonly used local-density approximation for exchange and correlation effects. [2]


Fermi Level Total Electron Density Jellium Model Average Electron Density Affinity Energy 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1985

Authors and Affiliations

  • N. D. Lang
    • 1
  1. 1.IBM Thomas J. Watson Research CenterYorktown HeightsUSA

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