Vertex Corrections to the Electrical Conductivity of the Disordered Falicov-Kimball Model

Abstract

We use a systematic expansion around the mean-field solution via the asymptotic limit to high spatial dimensions to study effects of elastic scatterings of mobile electrons on either thermally equilibrated or frozen, randomly distributed static impurities. We concentrate on quantum coherence effects and calculate the vertex corrections to the mean-field electrical conductivity of the disordered Falicov-Kimball model.

Keywords

• metallic materials
• electrical conductivity
• Falicov-Kimball Model