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: Beneventano, Carlota Gabriela, Fialkovsky, Ignat, Nieto, Mariela Natalia, Santángelo, Eve Mariel
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 2018
Materias:
Física
Physics
Graphene nanoribbons
Condensed matter physics
Graphene
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/124591
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-124591
record_format dspace
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
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