Mass distortions and edge modes in graphene armchair nanoribbons
We investigate, in the framework of macroscopic Dirac model, the spectrum, charge density and conductivity of metallic armchair graphene nanoribbons in presence of different mass terms. We reveal the conditions and symmetries governing the presence of edge modes in the system. Depending on the mass...
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Autores principales: | , , , |
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Formato: | Articulo Preprint |
Lenguaje: | Inglés |
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2018
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Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/124591 |
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I19-R120-10915-124591 |
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institution |
Universidad Nacional de La Plata |
institution_str |
I-19 |
repository_str |
R-120 |
collection |
SEDICI (UNLP) |
language |
Inglés |
topic |
Física Physics Graphene nanoribbons Condensed matter physics Graphene |
spellingShingle |
Física Physics Graphene nanoribbons Condensed matter physics Graphene Beneventano, Carlota Gabriela Fialkovsky, Ignat Nieto, Mariela Natalia Santángelo, Eve Mariel Mass distortions and edge modes in graphene armchair nanoribbons |
topic_facet |
Física Physics Graphene nanoribbons Condensed matter physics Graphene |
description |
We investigate, in the framework of macroscopic Dirac model, the spectrum, charge density and conductivity of metallic armchair graphene nanoribbons in presence of different mass terms. We reveal the conditions and symmetries governing the presence of edge modes in the system. Depending on the mass terms present they are exponentially localized gapless or gapped modes. The latter situation is realized, in particular, for a full Kekul´e distortion. For this case, we calculate the mean charge and conductivity of the ribbon, and derive the traces of the presence of edge modes suitable for experimental verication. |
format |
Articulo Preprint |
author |
Beneventano, Carlota Gabriela Fialkovsky, Ignat Nieto, Mariela Natalia Santángelo, Eve Mariel |
author_facet |
Beneventano, Carlota Gabriela Fialkovsky, Ignat Nieto, Mariela Natalia Santángelo, Eve Mariel |
author_sort |
Beneventano, Carlota Gabriela |
title |
Mass distortions and edge modes in graphene armchair nanoribbons |
title_short |
Mass distortions and edge modes in graphene armchair nanoribbons |
title_full |
Mass distortions and edge modes in graphene armchair nanoribbons |
title_fullStr |
Mass distortions and edge modes in graphene armchair nanoribbons |
title_full_unstemmed |
Mass distortions and edge modes in graphene armchair nanoribbons |
title_sort |
mass distortions and edge modes in graphene armchair nanoribbons |
publishDate |
2018 |
url |
http://sedici.unlp.edu.ar/handle/10915/124591 |
work_keys_str_mv |
AT beneventanocarlotagabriela massdistortionsandedgemodesingraphenearmchairnanoribbons AT fialkovskyignat massdistortionsandedgemodesingraphenearmchairnanoribbons AT nietomarielanatalia massdistortionsandedgemodesingraphenearmchairnanoribbons AT santangeloevemariel massdistortionsandedgemodesingraphenearmchairnanoribbons |
bdutipo_str |
Repositorios |
_version_ |
1764820450700951552 |