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Kondo Breakdown as a Selective Mott Transition in the Anderson Lattice

C. Pepin
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Abstract

We show within the slave boson technique, that the Anderson lattice model exhibits a Kondo breakdown quantum critical point (KB-QCP) where the hybridization goes to zero at zero temper- ature. At this fixed point, the f-electrons experience as well a selective Mott transition separating a local-moment phase from a Kondo-screened phase. The presence of a multi-scale QCP in the An- derson lattice in the absence of magnetism is discussed in the context of heavy fermion compounds. This study is the first evidence for a selective Mott transition in the Anderson lattice.

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C. Pepin. 2007-06-18. Kondo Breakdown as a Selective Mott Transition in the Anderson Lattice. https://doi.org/10.1103/physrevlett.98.206401

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