RT Journal Article
T1 Periodized discrete elasticity models for defects in graphene
A1 Carpio Rodríguez, Ana María
A1 Bonilla, Luis L.
AB The cores of edge dislocations, edge dislocation dipoles, and edge dislocation loops in planar graphene have been studied by means of periodized discrete elasticity models. To build these models, we have found a way to discretize linear elasticity on a planar hexagonal lattice using combinations of difference operators that do not symmetrically involve all the neighbors of an atom. At zero temperature, dynamically stable cores of edge dislocations may be heptagon-pentagon pairs (glide dislocations) or octagons (shuffle dislocations) depending on the choice of initial configuration. Possible cores of edge dislocation dipoles are vacancies, pentagon-octagon-pentagon divacancies, Stone-Wales defects, and 7-5-5-7 defects. While symmetric vacancies, divacancies, and 7-5-5-7 defects are dynamically stable, asymmetric vacancies and 5-7-7-5 Stone-Wales defects seem to be unstable.
PB American Physical Society
SN 1098-0121
YR 2008
FD 2008
LK https://hdl.handle.net/20.500.14352/49854
UL https://hdl.handle.net/20.500.14352/49854
LA eng
NO Carpio Rodríguez, A. M. y Bonilla, L. L. «Periodized Discrete Elasticity Models for Defects in Graphene». Physical Review B, vol. 78, n.o 8, agosto de 2008, p. 085406. DOI.org (Crossref), https://doi.org/10.1103/PhysRevB.78.085406.
NO Ministerio de Educación, Formación Profesional y Deportes (España)
NO Comunidad de Madrid
DS Docta Complutense
RD 20 ene 2026