d-wave superconductivity in the large-degeneracy limit of the Anderson lattice
- 19 January 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 58 (3), 266-269
- https://doi.org/10.1103/physrevlett.58.266
Abstract
We show, within a Kondo-boson 1/N expansion, that the infinite-U lattice Anderson model is unstable to d-wave superconductivity in the limit in which the model describes heavy-fermion behavior. The pairing mechanism is Kondo-boson exchange between heavy quasiparticles found in mean-field theory. The model is extended to include the Coulomb pseudopotential.Keywords
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