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Título: | Scattering of surface states at step edges in nanostripe arrays |
Autor: | Schiller, Frederik CSIC ORCID; Ruiz-Osés, Miguel; Cordón, J.; Ortega, J. Enrique CSIC ORCID | Fecha de publicación: | 2005 | Editor: | American Physical Society | Citación: | Physical Review Letters 95(6): 066805 (2005) | Resumen: | Surface states of noble metal surfaces split into Ag-like and Cu-like subbands in stepped Ag/Cu nanostripe arrays. The latter self-assemble by depositing Ag on vicinal Cu(111). Ag-like states scatter at nude step edges in Ag stripes, leading to umklapp bands, quantum size effects, and peak broadening. By contrast, Ag stripe boundaries become transparent to Cu-like states, which display band dispersion as in flat Cu(111). We find a linear relationship between the quantum size shift and peak broadening that applies in a variety of stepped systems, revealing the complex nature of step barrier potentials. | Versión del editor: | https://doi.org/10.1103/PhysRevLett.95.066805 | URI: | http://hdl.handle.net/10261/225929 | DOI: | 10.1103/PhysRevLett.95.066805 | ISSN: | 0031-9007 |
Aparece en las colecciones: | (CFM) Artículos |
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