https://doi.org/10.1140/epjb/s10051-021-00273-x
Regular Article - Solid State and Materials
Effect of charged impurity correlations on electrical conductivity in monolayer graphene double-layer systems
1
University of Science - VNUHCM, 227 Nguyen Van Cu Street, 5th District, Ho Chi Minh City, Vietnam
2
Vietnam National University, Ho Chi Minh City, Vietnam
3
Computational Physics Laboratory K002, Ho Chi Minh City University of Education, 72711, Ho Chi Minh City, Vietnam
4
Department of Physics, Ho Chi Minh City University of Education, 72711, Ho Chi Minh City, Vietnam
Received:
28
September
2021
Accepted:
23
December
2021
Published online:
12
January
2022
We calculate the conductivity of graphene in three monolayer graphene double-layer structures taking into account the presence of correlations of charged impurities. We use the Boltzmann transport theory and continuum model for the structure factor S
to study the electrical conductivity of monolayer graphene in presence of the second layer (bilayer graphene, monolayer graphene, or two-dimensional electron gas (2DEG)) due to the screened Coulomb scattering at T = 0 K for different values of correlation length 
, interlayer distance d and dielectric constant 
, and 2DEG material parameters. We find that for considered double-layer systems, the electrical conductivity 
increases with decreasing d for all values of 
and increases strongly (slightly) with increasing 
. We also show that increases slightly (considerably) with increasing 
for 
and the influence of correlations on is negligible for low impurity concentration of layer I 
(
).
Supplementary Information The online version supplementary material available at https://doi.org/10.1140/epjb/s10051-021-00273-x.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2022
