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Resonant Enhancement of Inelastic Light Scattering in Strongly Correlated Materials

A. M. Shvaika·O. Vorobyov·J. K. Freericks·T. P. Devereaux
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Abstract

We use dynamical mean field theory to find an exact solution for inelastic light scattering in strongly correlated materials such as those near a quantum-critical metal-insulator transition. We evaluate the results for $\textbf{q}=0$ (Raman) scattering and find that resonant effects can be quite large, and yield a triple resonance, a significant enhancement of nonresonant scattering peaks, a joint resonance of both peaks when the incident photon frequency is on the order of $U$, and the appearance of an isosbestic point in all symmetry channels for an intermediate range of incident photon frequencies.

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A. M. Shvaika, O. Vorobyov, J. K. Freericks, T. P. Devereaux. 2003-11-04. Resonant Enhancement of Inelastic Light Scattering in Strongly Correlated Materials. https://doi.org/10.1103/physrevlett.93.137402

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