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arXiv · cond-mat/9608128

Non-Fermi liquid behavior in an extended Anderson model

Yu-Liang Liu·Zhao-Bin Su·Lu Yu
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Abstract

An extended Anderson model, including screening channels (non-hybridizing, but interacting with the local orbit), is studied within the Anderson-Yuval approach, originally devised for the single-channel Kondo problem. By comparing the perturbation expansions of this model and a generalized resonant level model, the spin-spin correlation functions are calculated which show non-Fermi liquid exponent depending on the strength of the scattering potential. The relevance of this result to experiments in some heavy fermion systems is briefly discussed.

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Yu-Liang Liu, Zhao-Bin Su, Lu Yu. 1996-08-27. Non-Fermi liquid behavior in an extended Anderson model. https://doi.org/10.1103/physrevb.54.15185

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