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Título: | Role of surface plasmons in the decay of image-potential states on silver surfaces |
Autor: | Garcia-Lekue, Aran CSIC ORCID; Pitarke, José María CSIC ORCID; Chulkov, Eugene V. CSIC ORCID; Liebsch, A.; Echenique, Pedro M. CSIC ORCID | Fecha de publicación: | 2002 | Editor: | American Physical Society | Citación: | Physical Review Letters 89(9): 964011 (2002) | Resumen: | The combined effect of single-particle and collective surface excitations in the decay of image-potential states on Ag surfaces is investigated, and the origin of the long-standing discrepancy between experimental measurements and previous theoretical predictions for the lifetime of these states is elucidated. Although surface-plasmon excitation had been expected to reduce the image-state lifetime, we demonstrate that the subtle combination of the spatial variation of s−d polarization in Ag and the characteristic nonlocality of many-electron interactions near the surface yields surprisingly long image-state lifetimes, in agreement with experiment. | Versión del editor: | https://doi.org/10.1103/PhysRevLett.89.096401 | URI: | http://hdl.handle.net/10261/225905 | DOI: | 10.1103/PhysRevLett.89.096401 | ISSN: | 0031-9007 |
Aparece en las colecciones: | (CFM) Artículos |
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rolesilver.pdf | 92,07 kB | Adobe PDF | Visualizar/Abrir |
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