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Título: | Computing C1s X-ray absorption for single-walled carbon nanotubes with distinct electronic type |
Autor: | Mowbray, Duncan J. CSIC ORCID; Ayala, Paola; Pichler, Thomas; Rubio, Angel CSIC ORCID | Fecha de publicación: | sep-2011 | Editor: | American Scientific Publishers | Citación: | Materials Express 1(3): 225-230 (2011) | Resumen: | The experimental data recorded for the C1s edge in X-ray absorption spectroscopy for graphite, graphene and nanotubes, have consistently exhibited certain discrepancies when compared with theoretical calculations. A theoretical approach to estimate the energy scale normalization for the C1s shape in X-ray absorption is presented within the time dependent density functional theory and random phase approximation framework employing the loss function. The position of the σ* resonance is fairly localized whereas core hole effects must be envisaged in order to have an agreement with the delocalization of the π* resonance, which is displaced by ∼2 eV. Here we report a combined experimental and theoretical approach to identify the electronic conduction band of single walled carbon nanotubes using X-ray absorp- tion, taking into account their metallic character. | Descripción: | El pdf del artículo es la versión post-print. | Versión del editor: | http://dx.doi.org/10.1166/mex.2011.1027 | URI: | http://hdl.handle.net/10261/95781 | DOI: | 10.1166/mex.2011.1027 | ISSN: | 2158-5849 |
Aparece en las colecciones: | (CFM) Artículos |
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Computing C1s.pdf | 741,75 kB | Adobe PDF | Visualizar/Abrir |
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