Suppressed plasmon excitations, enhanced damping and static screening in Kek-Y strained $\alpha -{\mathcal{T}}_3$ model

Jean Marseille, Teresa Lee, Andrii Iurov +3

We performed a rigorous theoretical and numerical investigation into the polarization function, plasmon excitations, and plasmon damping in the Kek-$\alpha$ model, a two-dimensional mat…