Resonant Enhancement of Inelastic Light Scattering in Strongly Correlated Materials

Details Resonant Enhancement of Inelastic Light Scattering in Strongly Correlated Materials Resonant Enhancement of Inelastic Light Scattering in Strongly Correlated Materials

2003-11-04

arxiv.org/abs/cond-mat/0311070v1

Phys. Rev. Lett. 93, 137402 (2004)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages RevTex, 4 Figures eps

Scientific paper

10.1103/PhysRevLett.93.137402

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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