Molecular Graphene under the Eye of Scattering Theory
arXiv:1309.7728 · doi:10.1103/PhysRevB.88.245418
Abstract
The recent experimental observations of designer Dirac Fermions and topological phases in molecular graphene are addressed theoretically. Using scattering theory we calculate the electronic structure of finite lattices of scattering centers dual to the honeycomb lattice. In good agreement with experimental observations, we obtain a V-shaped electron density of states around the Fermi energy. By varying the lattice parameter we simulate electron and hole doping of the structure and by adding and removing scattering centers we simulate respectively vacancy and impurity defects. Specifically for the vacancy defect we verify the emergence of a sharp resonance near the Fermi energy for increasing strength of the scattering potential.
5 pages, 4 figures, accepted
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Cited by in corpus (4)
- Granular Superconductor in a honeycomb lattice as a realization of Bosonic Dirac Material
- Merging of the Dirac points in electronic artificial graphene
- Engineered Near-Perfect Back-Scattering on Surface of Topological Insulator with Non-Magnetic Impurities
- The electronic structure and intervalley coupling of artificial and genuine graphene superlattice