Resonant Enhancement of Inelastic Light Scattering in Strongly Correlated Materials

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 $\text{q}=0$ (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.

5 pages RevTex, 4 Figures eps

References in corpus (7)

• Exact solution of the Falicov-Kimball model with dynamical mean-field theory
• Raman scattering through a metal-insulator transition
• Nonresonant B1g Raman scattering in the Hubbard model
• Nonresonant inelastic light scattering in the Hubbard model
• Inelastic X-ray scattering in correlated (Mott) insulators
• Dynamical susceptibilities in strong coupling approach: General scheme and Falikov-Kimball model
• Inelastic x-ray scattering as a probe of electronic correlations

Cited by in corpus (14)

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• Isosbestic Points: Theory and Applications
• Nonlinear light-Higgs coupling in superconductors beyond BCS: Effects of the retarded phonon-mediated interaction
• Electronic Raman scattering in correlated materials: exact treatment of nonresonant, mixed, and resonant scattering with dynamical mean field theory
• Stroboscopic Tests for Thermalization of Electrons in Pump/Probe Experiments
• Spectral properties of four-time fermionic Green's functions
• Signatures of Hund Metal and finite-frequency nesting in Sr${}_2$RuO${}_4$ Revealed by Electronic Raman Scattering
• Resonant electronic Raman scattering near a quantum critical point
• 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
• Non-resonant Raman response of inhomogeneous structures in the electron doped $t-t^{\prime }$ Hubbard model
• Resonant Enhancement of Electronic Raman Scattering
• Nonequilibrium DMFT approach to time-resolved Raman spectroscopy