High-Frequency Conductivity of a Solid-State Plasma with Dynamically Screened Interactions. I. Thermal Equilibrium

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Abstract
Dawson-Oberman high-frequency long-wavelength conductivities of solid-state plasmas in thermal equilibrium are derived using a variational formalism. These derivations are different from those of other authors and give additional insight into the nature of the approximations implicit in their results. The final expressions reflect screened carrier-carrier and carrier-phonon interactions. They extend published conductivity formulas principally in their inclusion of deformation-potential phonon-carrier coupling.