Effect of Kondo resonance on optical third harmonic generation

preprint2006arXivOpen access

Abstract

We use the method of dynamical mean field thoery, to study the effect of Kondo resonance on optical third harmonic generation (THG) spectra of strongly correlated systems across the metal-insulator transition. We find that THG signals are proportional to the quasiparticle weight zz of the Kondo peak, and are precursors of Mott-Hubbard gap formation.

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