Lifetimes of negative-ion states near metal surfaces
- 15 July 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 46 (4) , 2584-2590
- https://doi.org/10.1103/physrevb.46.2584
Abstract
Energy shifts and broadening of negative-ion states near metal surfaces are calculated using the complex-scaling technique. The affinity levels of the atoms are described using a nonlocal pseudopotential derived with use of the separable-potential method. The affinity levels shift downward with decreasing atom-surface separation. The widths of the affinity levels are found to be narrow compared to the width of typical excited states.Keywords
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