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Kondo Effect in Fermi Systems with a Gap: A Renormalization Group Study

Kan Chen·C. Jayaprakash
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Abstract

We present the results of a Wilson Renormalization Group study of the single-impurity Kondo and Anderson models in a system with a gap in the conduction electron spectrum. The behavior of the impurity susceptibility and the zero-frequency response function, $T< >$ are discussed in the cases with and without particle-hole symmetry. In addition, for the asymmetric Anderson model the correlation functions, $<\vec S \cdot\vec σ(0)>$,$ $, and $ $ are computed.

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Kan Chen, C. Jayaprakash. 1997-06-27. Kondo Effect in Fermi Systems with a Gap: A Renormalization Group Study. https://doi.org/10.1103/physrevb.57.5225

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