Optical conductivity and transparency in an effective model for graphene

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-...

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Autores principales: Falomir, Horacio Alberto, Loewe, Marcelo, Muñoz, Enrique, Raya, Alfredo
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2018
Materias:
Física
Ciencias Exactas
Quantum Mechanics
Graphene
Quantum Hall effect
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/124908
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-124908
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ciencias Exactas
Quantum Mechanics
Graphene
Quantum Hall effect
spellingShingle Física
Ciencias Exactas
Quantum Mechanics
Graphene
Quantum Hall effect
Falomir, Horacio Alberto
Loewe, Marcelo
Muñoz, Enrique
Raya, Alfredo
Optical conductivity and transparency in an effective model for graphene
topic_facet Física
Ciencias Exactas
Quantum Mechanics
Graphene
Quantum Hall effect
description 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.
format Articulo
Preprint
author Falomir, Horacio Alberto
Loewe, Marcelo
Muñoz, Enrique
Raya, Alfredo
author_facet Falomir, Horacio Alberto
Loewe, Marcelo
Muñoz, Enrique
Raya, Alfredo
author_sort Falomir, Horacio Alberto
title Optical conductivity and transparency in an effective model for graphene
title_short Optical conductivity and transparency in an effective model for graphene
title_full Optical conductivity and transparency in an effective model for graphene
title_fullStr Optical conductivity and transparency in an effective model for graphene
title_full_unstemmed Optical conductivity and transparency in an effective model for graphene
title_sort optical conductivity and transparency in an effective model for graphene
publishDate 2018
url http://sedici.unlp.edu.ar/handle/10915/124908
work_keys_str_mv AT falomirhoracioalberto opticalconductivityandtransparencyinaneffectivemodelforgraphene
AT loewemarcelo opticalconductivityandtransparencyinaneffectivemodelforgraphene
AT munozenrique opticalconductivityandtransparencyinaneffectivemodelforgraphene
AT rayaalfredo opticalconductivityandtransparencyinaneffectivemodelforgraphene
bdutipo_str Repositorios
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