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Is the Mott transition relevant to f-electron metals ?

L. de' Medici·A. Georges·G. Kotliar·S. Biermann
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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 endpoints. Implications for experiments on f-electron materials such as the Cerium alloy Ce$_{0.8}$La$_{0.1}$Th$_{0.1}$ are discussed.

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L. de' Medici, A. Georges, G. Kotliar, S. Biermann. 2005-02-23. Is the Mott transition relevant to f-electron metals ?. https://doi.org/10.1103/physrevlett.95.066402

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