Topological Vortices in Chiral Gauge Theory of Graphene
arXiv:1006.0791 · doi:10.1016/j.aop.2009.10.004
Abstract
Generation mechanism of energy gaps between conductance and valence bands is at the centre of the study of graphene material. Recently Chamon, Jackiw, et al. proposed a mechanism of using a Kekulé distortion background field and its induced gauge potential to generate energy gaps. In this paper various vortex structures inhering in this model are studied. Regarding as a generic background field rather than a fixed Nielson-Oleson type distribution, we have found two new types of vortices on the graphene surface --- the velocity field vortices and the monopole-motion induced vortices --- from the inner structure of the potential . These vortex structures naturally arise from the motion of the Dirac fermions instead of from the background distortion field.
12 pages
References in corpus (9)
- Electric Field Effect in Atomically Thin Carbon Films
- The electronic properties of graphene
- Electron fractionalization in two-dimensional graphenelike structures
- Chiral Gauge Theory for Graphene
- Theoretical and Experimental Status of Magnetic Monopoles
- Electron fractionalization for two-dimensional Dirac fermions
- The quantum valley Hall effect in proximity-induced superconducting graphene: an experimental window for deconfined quantum criticality
- Graphene with geometrically induced vorticity
- Inner Structure of Spin^{c}(4) Gauge Potential on 4-Dimensional Manifolds