title: Mott transition and Kondo screening in f-electron metals.
abstract: We study how a finite hybridization between a narrow correlated band and a wide conduction band affects the Mott transition. At zero temperature, the hybridization is found to be a relevant perturbation, so that the Mott transition is suppressed by Kondo screening. In contrast, a first-order transition remains at finite temperature, separating a local-moment phase and a Kondo-screened phase. The first-order transition line terminates in two critical end points. Implications for experiments on f-electron materials such as the cerium alloy Ce0.8La0.1Th0.1 are discussed.
authors.affiliation: Centre de Physique Théorique, Ecole Polytechnique, 91128 Palaiseau Cedex, France.
authors.forename: L
authors.initials: L
authors.lastname: de' Medici
authors.forename: A
authors.initials: A
authors.lastname: Georges
authors.forename: G
authors.initials: G
authors.lastname: Kotliar
authors.forename: S
authors.initials: S
authors.lastname: Biermann