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We calculate the total electronic Raman scattering spectrum for a system witha charge density wave on an infinite-dimensional hypercubic lattice. Theproblem is solved exactly for the spinless Falicov-Kimball model with dynamicalmean-field theory. We include the nonresonant, mixed, and resonantcontributions in three common experimental polarizations, and analyze theresponse functions for representative values of the energy of the incidentphotons. The complicated scattering response can be understood from thesignificant temperature dependence of the many-body density of states, andincludes a huge enhancement for photon frequencies near the charge-density-wavegap energy.

physical review. b, condensed matter and materials physics

Resonant Raman scattering effects in a nesting driven  charge-density-wave insulator: exact analysis of the spinless Falicov-Kimball  model with dynamical mean-field theory