The influence of defects on the conductivity of graphene within the effective theory approach
S. N. Valgushev+*, E. V. Luschevskaya+, O. V. Pavlovsky+×, M. I. Polikarpov+*, M. V. Ulybyshev+×
+Alikhanov Institute of Theoretical and Experimental Physics, 117218 Moscow, Russia
*Moscow Institute of Physics and Technology, 141700 Dolgoprudniy, Russia
×Moscow State University, 119899 Moscow, Russia
The results of the simulations by Monte Carlo method of graphene with
structural defects are presented.
The calculations are performed within an effective quantum field theory with
non-compact 3 + 1-dimensional Abelian gauge field and
2 + 1-dimensional Kogut-Susskind fermions. It was found that
defects shift the phase transition point semimetal-insulator
towards higher values of a substrate permittivity.