New experimental studies on the adsorption of K on Si(100) and Si(111) |
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| Affiliation: | 2. Department of Population Medicine and Lifestyle Diseases, Medical University of Bialystok, Bialystok, Poland;3. Department of Nuclear Medicine, Technical University Munich, Ismaninger Str., Munich, Germany;4. DZKH (Deutsches Zentrum für Herz-Kreislauf-Forschung e.V.), partner site Munich Heart Alliance, Munich, Germany |
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| Abstract: | We report additional experimental characterization of the adsorption of K on Si(100) and Si(111). Our AES data reveal a layer-by-layer growth of K at room temperature on both surfaces. Measurements of the work function change on K adsorption present a minimum at a K coverage of half a monolayer. Furthermore, we find evidence for an incomplete charge transfer in contradiction to recent calculations. Our data could provide a solid basis to perform calculations in this interesting model system. |
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