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arxiv: cond-mat/9305031 · v1 · submitted 1993-05-25 · ❄️ cond-mat

Superconductivity in the Anderson Lattice

classification ❄️ cond-mat
keywords andersonfindlatticesymmetryamplitudeanisotropicbarebosons
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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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