Electronic transport and dynamical polarization in bilayer silicene-like system
arXiv:1809.05983
Abstract
We investigate the semiclassical electronic transport properties of the bilayer silicene-like system in the presence of charged impurity. The trigonal warping due to the interlayer hopping, and its effect to the band structure of bilayer silicene is discussed. Besides the trigonal warping, the external field also gives rise to the anisotropic effect of the mobility (at finite temperature) which can be explored by the Boltzmann theory. The dynamical polarization as well as the scattering wave vector-dependent screening within random phase approximation are very important in determining the scattering behavior and the self-consistent transport. We detailly discuss the transport behavior under the short- or long-range potential. The phonon scattering with the acoustic phonon mode which dominant at high temperature is also studied within the density functional theory (DFT). Our results are also valid for the bilayer graphene or bilayer MoS, and other bilayer systems with strong interlayer coupling.
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