Abstract
We study the role of complex scattering effects in transferred bi-layer and tri-layer CVD graphene, wherein the dynamics of intrinsic and photo-excited carriers is governed by interactions between adjacent layers. We observed non-Drude conductivity stemming from scattering in electrically connected systems; these effects being more pronounced at low temperatures. Dynamics of photo-excited carriers are studied in the context of intense terahertz field and optical fluence. We observe enhanced scattering and attribute it to coulombic interactions in the stacked systems investigated under various non-equilibrium conditions.
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