Plasmon damping rates in Coulomb-coupled two-dimensional layers in a heterostructure

Dipendra Dahal; Godfrey Gumbs; Andrii Iurov; Chin-Sen Ting

doi:10.3390/ma15227964

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arXiv · 2205.00053

Plasmon damping rates in Coulomb-coupled two-dimensional layers in a heterostructure

Dipendra Dahal·Godfrey Gumbs·Andrii Iurov·Chin-Sen Ting

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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.

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Dipendra Dahal, Godfrey Gumbs, Andrii Iurov, Chin-Sen Ting. 2022-04-29. Plasmon damping rates in Coulomb-coupled two-dimensional layers in a heterostructure. https://doi.org/10.3390/ma15227964

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