title: Spectrum of electronic excitations due to the adsorption of atoms on metal surfaces.
abstract: The time-dependent, mean-field Newns-Anderson model for a spin-polarized adsorbate approaching a metallic surface is solved in the wide-band limit. Equations for the time evolution of the electronic structure of the adsorbate-metal system are derived and the spectrum of electronic excitations is found. The behavior of the model is demonstrated for a set of physically reasonable parameters.
authors.affiliation: Department of Physics, University of Bath, Bath BA2 7AY, United Kingdom.
authors.forename: M S
authors.initials: MS
authors.lastname: Mizielinski
authors.forename: D M
authors.initials: DM
authors.lastname: Bird
authors.forename: M
authors.initials: M
authors.lastname: Persson
authors.forename: S
authors.initials: S
authors.lastname: Holloway