Disorder-driven non-Fermi liquid behaviour of correlated electrons

Abstract

Systematic deviations from standard Fermi-liquid behavior have been widely\nobserved and documented in several classes of strongly correlated metals. For\nmany of these systems, mounting evidence is emerging that the anomalous\nbehavior is most likely triggered by the interplay of quenched disorder and\nstrong electronic correlations. In this review, we present a broad overview of\nsuch disorder-driven non-Fermi-liquid behavior, and discuss various examples\nwhere the anomalies have been studied in detail. We describe both their\nphenomenological aspects as observed in experiment, and the current theoretical\nscenarios that attempt to unravel their microscopic origin.\n