Plasmon damping rates in Coulomb-coupled two-dimensional layers in a heterostructure
arXiv:2205.00053 · doi:10.3390/ma15227964
Abstract
The Coulomb excitations of charge density oscillation are calculated for a double-layer heterostructure. Specifically, we consider two-dimensional (2D) layers of silicene and graphene on a substrate. From the obtained surface response function, we calculated the plasmon dispersion relations which demonstrate the way in which the Coulomb coupling renormalizes the plasmon frequencies. Additionally, we present a novel result for the damping rates of the plasmons in this Coulomb coupled heterostructure and compare these results as the separation between layers is varied.
11 pages, 8 figures
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