Coupled Electrons and Pair Fluctuations in Two Dimensions: A Transition to Superconductivity in a Conserving Approximation
J. J. Deisz, D. W. Hess, J. W. Serene
DOI 10.1103/PhysRevLett.80.373 · Physical Review Letters
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Abstract
We report a superconducting transition in the fully conserving fluctuation exchange approximation for a two-dimensional attractive Hubbard model. The transition temperature agrees well with quantum Monte Carlo calculations, but the superfluid density and specific heat near Tc have anomalous temperature dependences for lattice sizes up to 64×64.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Hubbard Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 160 | Pressure not reported | onset |
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