Artículo
Mass distortions and edge modes in graphene armchair nanoribbons
Fecha de publicación:
04/2018
Editorial:
American Physical Society
Revista:
Physical Review B: Condensed Matter and Materials Physics
ISSN:
1098-0121
e-ISSN:
2469-9969
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
We investigate, in the framework of the macroscopic Dirac model, the spectrum, charge density, and conductivity of metallic armchair graphene nanoribbons in the presence of different mass terms. We reveal the conditions and symmetries governing the existence 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 Kekulé 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 verification.
Palabras clave:
GRAPHENE NANORIBBONS
,
DISTORTIONS
,
CONDUCTIVITY
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IFLP)
Articulos de INST.DE FISICA LA PLATA
Articulos de INST.DE FISICA LA PLATA
Citación
Beneventano, Carlota Gabriela; Fialkovsky, I. V.; Nieto, Mariela Natalia; Santangelo, Eve Mariel; Mass distortions and edge modes in graphene armchair nanoribbons; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 97; 15; 4-2018; 155406-155426
Compartir
Altmétricas