Band dispersion of graphene with structural defects

  title={Band dispersion of graphene with structural defects},
  author={Piotr Kot and Jonathan Parnell and Sina Habibian and Carola Strasser and Pavel M. Ostrovsky and Christian R. Ast},
  journal={Physical Review B},
We study the band dispersion of graphene with randomly distributed structural defects using two complementary methods, exact diagonalization of the tight-binding Hamiltonian and implementing a self-consistent $T$ matrix approximation. We identify three distinct types of impurities resulting in qualitatively different spectra in the vicinity of the Dirac point. First, resonant impurities, such as vacancies or 585 defects, lead to stretching of the spectrum at the Dirac point with a finite… 

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