Superconductivity in the Kondo lattice: a mean-field approach

Details Superconductivity in the Kondo lattice: a mean-field approach Superconductivity in the Kondo lattice: a mean-field approach

2000-11-22

arxiv.org/abs/cond-mat/0011383v1

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

We calculate the superconducting critical temperature T_c and the Kondo temperature T_K of the Kondo lattice, decoupling the Kondo exchange interaction in the unrestricted Hartree-Fock (HF) Bardeen-Cooper-Schrieffer (BCS) approximation. We obtain that both T_K and T_c have an exponential dependence in the Kondo coupling J_K. For optimum doping and realistic parameters, both temperatures fall in the experimentally observed range.

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