Accurate evaluation of the Green's function of disordered graphenes
arXiv:1005.3592 · doi:10.1103/PhysRevB.82.153405
Abstract
An accurate simulation of Green's function and self-energy function of non-interacting electrons in disordered graphenes are performed. Fundamental physical quantities such as the elastic relaxation time τe, the phase velocity vp, and the group velocity vg are evaluated. New features around the Dirac point are revealed, showing hints that multi-scattering induced hybridization of Bloch states plays an important role in the vicinity of the Dirac point.
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- Spin-orbit related power-law dependence of the diffusive conductivity on the carrier density in disordered Rashba two-dimensional electron systems
- Electronic structure and transport in materials with flat bands: 2D materials and quasicrystals
- Electronic structure of disordered graphene with Green's function approach