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Optical conductivity and transparency in an effective model for graphene
| Indexado |
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| DOI | 10.1103/PHYSREVB.98.195430 | ||||
| Año | 2018 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
Motivated by experiments confirming that the optical transparency of graphene is defined through the fine structure constant and that it could be fully explained within the relativistic Dirac fermions in a two-dimensional picture, we investigate in this article how this property is affected by next-to-nearest-neighbor coupling in the low-energy continuum description of graphene. A detailed calculation within the linear response regime allows us to conclude that, somewhat surprisingly, the optical conductivity at zero temperature that determines the transparency remains robust up to this correction.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Falomir, Horacio | Hombre |
UNIV NACL LA PLATA - Argentina
Facultad de Ciencias Exactas, Universidad Nacional de La Plata - Argentina |
| 2 | LOEWE-LOBO, MARCELO PATRICIO | Hombre |
Pontificia Universidad Católica de Chile - Chile
UNIV CAPE TOWN - República de Sudáfrica Universidad Técnica Federico Santa María - Chile University of Cape Town - República de Sudáfrica |
| 3 | MUNOZ-ORTIZ, ENRIQUE | Hombre |
Pontificia Universidad Católica de Chile - Chile
|
| 4 | Raya, A. | Hombre |
Univ Michoacana - México
Universidad Nacional Autónoma de México - México Universidad Michoacana de San Nicolás de Hidalgo - México |
| Fuente |
|---|
| Agencia Nacional de Promoción Científica y Tecnológica |
| Consejo Nacional de Investigaciones Científicas y Técnicas |
| Universidad Nacional de La Plata |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| FONDECYT (Chile) |
| CONICET, Argentina |
| Consejo Nacional de Ciencia y Tecnología (México) |
| Consejo Nacional de Ciencia y TecnologÃa |
| ANPCyT, Argentina |
| Fondo Nacional de Desarrollo CientÃfico, Tecnológico y de Innovación Tecnológica |
| UNLP, Argentina |
| Consejo Nacional de Investigaciones CientÃficas y Técnicas |
| Agencia Nacional de Promoción CientÃfica y Tecnológica |
| Conicyt-PIA/BASAL (Chile) |
| Agradecimiento |
|---|
| H.F. and A.R. acknowledge PUC for its hospitality. H.F. thanks ANPCyT, CONICET, and UNLP, Argentina, for partial support through Grants No. PICT-2014-2304, No. PIP 2015-688 and Proy. Nro. 11/X748, respectively. M.L. acknowledges support from FONDECYT (Chile) under Grants No. 1170107, No. 1150471, No. 1150847, and Conicyt-PIA/BASAL (Chile) Grant No. FB0821. E.M. acknowledges support from FONDECYT (Chile) under Grant No. 1141146. A.R. acknowledges support from Consejo Nacional de Ciencia y Tecnologia (Mexico) under Grant No. 256494 and FONDECYT (Chile) under Grant No. 1150847. |
| H.F. and A.R. acknowledge PUC for its hospitality. H.F. thanks ANPCyT, CONICET, and UNLP, Argentina, for partial support through Grants No. PICT-2014-2304, No. PIP 2015-688 and Proy. Nro. 11/X748, respectively. M.L. acknowledges support from FONDECYT (Chile) under Grants No. 1170107, No. 1150471, No. 1150847, and ConicytPIA/BASAL (Chile) Grant No. FB0821. E.M. acknowledges support from FONDECYT (Chile) under Grant No. 1141146. A.R. acknowledges support from Consejo Nacional de Ciencia y Tecnologia (Mexico) under Grant No. 256494 and FONDECYT (Chile) under Grant No. 1150847. |
