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Título: | Temperature effect on acoustic plasmons |
Autor: | Silkin, Viatcheslav M. CSIC ORCID; Nazarov, V. U.; Balassis, A.; Chernov, I. P.; Chulkov, Eugene V. CSIC ORCID | Fecha de publicación: | 2016 | Editor: | American Physical Society | Citación: | Physical Review B 94(16): 165122 (2016) | Resumen: | The presence of several kinds of carriers at the Fermi surface results in interesting complex dielectric properties of the bulk Pd in the low-energy excitation range. A most spectacular manifestation of this is the presence of a collective electronic excitation characterized by a soundlike dispersion, termed acoustic plasmon (AP). Due to the characteristic dispersion reaching zero energy in the long-wavelength limit, the question of the thermal stability of the excitation spectrum arises. In this work we explore this problem investigating the thermal effect on the electronic excitation spectrum in this material, tracing how the AP properties vary with the temperature increase. The main effect consists in the gradual destruction of AP in the energy range corresponding to the temperature. | Versión del editor: | https://doi.org/10.1103/PhysRevB.94.165122 | URI: | http://hdl.handle.net/10261/246498 | DOI: | 10.1103/PhysRevB.94.165122 | ISSN: | 2469-9969 |
Aparece en las colecciones: | (CFM) Artículos |
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templasm.pdf | 3,12 MB | Adobe PDF | Visualizar/Abrir |
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