Superconductivity in the Anderson Lattice

Details Superconductivity in the Anderson Lattice Superconductivity in the Anderson Lattice

1993-05-25

arxiv.org/abs/cond-mat/9305031v1

Physics

Condensed Matter

14 pages, Revtex

Scientific paper

Using an anisotropic hybridization matrix element, V($\vec k$), reflecting cubic symmetry at the ``rare-earth'' sites of the infinite U Anderson lattice, we calculate the bare quasiparticle scattering amplitude to order 1/N using slave Bosons and find significant differences with previous results under spherical symmetry. Due to exchange of density fluctuations, we find an instability. toward E$_g$ and T$_{1g}$ (even-parity) pairing.

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