Accurate evaluation of the Green's function of disordered graphenes

W. Zhu, Q. W. Shi, X. R. Wang, X. P. Wang, J. L. Yang, Jie Chen, J. G. Hou

Published 2010-05-20Version 1

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 {\tau}e, 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.