Phys. Rev. Lett. 95, 066402 (2005) [4 pages]Mott Transition and Kondo Screening in f-Electron MetalsReceived 23 February 2005; published 5 August 2005 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. © 2005 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.066402
DOI:
10.1103/PhysRevLett.95.066402
PACS:
71.27.+a, 71.10.Fd, 71.28.+d, 71.30.+h
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