Electronic excitations in adsorbed alkali-metal layers
- 11 November 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 67 (20) , 2858-2861
- https://doi.org/10.1103/physrevlett.67.2858
Abstract
A new concept for the electronic excitations in adsorbed alkali-metal layers is presented. It explains how these excitations evolve with coverage from below one monolayer to thick multilayers, and it establishes a direct relation of these overlayer collective modes to those of clean alkali-metal surfaces.Keywords
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