Phys. Rev. Lett. 85, 1524–1527 (2000)d-Wave Superconductivity in the Hubbard ModelReceived 24 February 2000; published in the issue dated 14 August 2000 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. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.1524
DOI:
10.1103/PhysRevLett.85.1524
PACS:
74.20.Mn, 74.25.Dw, 74.25.Jb
See AlsoComment: Gang Su, Does the 2D Hubbard Model Really Show d-Wave Superconductivity?, Phys. Rev. Lett. 86, 3690 (2001). Reply: Th. Maier, M. Jarrell, and Th. Pruschke, Maier, Jarrell, and Pruschke Reply:, Phys. Rev. Lett. 86, 3691 (2001). |
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