  We consider a double-layer system made of two parallel bilayer graphene
sheets separated by a dielectric medium. We calculate the finite-temperature
electrical conductivity of the first layer due to charged impurities located in
two layers. We study the effects of temperature, interlayer distance,
dielectric constants and impurity concentration, carrier concentration on the
electrical conductivity. We show the importance of charged impurities located
in layer II in determining electrical conductivity of the first layer for small
interlayer distance. The results in this paper give us more understanding about
the long-range charged impurity scattering in bilayer graphene under effect of
the second one.
