Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5420132 | Progress in Surface Science | 2007 | 49 Pages |
Abstract
The low coverage adsorption of alkalis on metal surfaces induces excited states localised on the adsorbate. In the case of noble metal substrates, these excited states can exhibit a very long lifetime, up to tens of fs in the Cs/Cu(1Â 1Â 1) system. We review recent experimental and theoretical investigations of alkalis adsorbed on noble metal surfaces, with emphasis on the characteristics of the alkali-induced excited states, the origin of their long lifetimes, and the consequences for the adsorbate dynamics. The possibility of long-lived resonances in other adsorbate/substrate systems is also discussed.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
J.P. Gauyacq, A.G. Borisov, M. Bauer,