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Theories of non-Fermi liquid behavior in heavy fermions

P. Coleman
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Abstract

I review our incomplete understanding of non-Fermi liquid behavior in heavy fermion systems at a quantum critical point. General considerations suggest that critical antiferromagnetic fluctuations do not destroy the Fermi surface by scattering the heavy electrons- but by actually breaking up the internal structure of the heavy fermion. I contrast the weak, and strong-coupling view of the quantum phase transition, emphasizing puzzles and questions that recent experiments raise.

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P. Coleman. 1999-01-21. Theories of non-Fermi liquid behavior in heavy fermions. https://doi.org/10.1016/s0921-4526(98)00795-9

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