d-Wave Superconductivity in the Hubbard Model
Th. Maier, M. Jarrell, Th. Pruschke, J. Keller
DOI 10.1103/PhysRevLett.85.1524 · Physical Review Letters
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Abstract
The superconducting instabilities of the doped repulsive 2D Hubbard model are studied in the intermediate to strong coupling regime with the help of the dynamical cluster approximation. To solve the effective cluster problem we employ an extended noncrossing approximation, which allows for a transition to the broken symmetry state. At sufficiently low temperatures we find stable d-wave solutions with off-diagonal long-range order. The maximal Tc≈150K occurs for a doping δ≈20% and the doping dependence of the transition temperatures agrees well with the generic high- Tc phase diagram.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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