Mott Transition and Kondo Screening in f-Electron Metals

L. de’ Medici, A. Georges, G. Kotliar, and S. Biermann
Phys. Rev. Lett. 95, 066402 – Published 5 August 2005

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.

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  • Received 23 February 2005

DOI:https://doi.org/10.1103/PhysRevLett.95.066402

©2005 American Physical Society

Authors & Affiliations

L. de’ Medici1,2, A. Georges1, G. Kotliar3, and S. Biermann1

  • 1Centre de Physique Théorique, École Polytechnique, 91128 Palaiseau Cedex, France
  • 2Laboratoire de Physique des Solides, CNRS-UMR 8502, Université de Paris-Sud, Bâtiment 510, 91405 Orsay, France
  • 3Department of Physics and Astronomy, Serin Physics Laboratory, Rutgers University, Piscataway, New Jersey 08854, USA

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Issue

Vol. 95, Iss. 6 — 5 August 2005

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