Phys. Rev. B 36, 8302 (1987)

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Antiferromagnetic order and high-temperature superconductivity

Kerson Huang and Efstratios Manousakis
Center for Theoretical Physics, Laboratory for Nuclear Science dge, Massachusetts 02139
(Received 16 September 1987)

The nearly half-filled Hubbard model with strong on-site repulsion is used as a model for the recently discovered copper oxide high-temperature superconductors. The onset of superconductivity upon doping the half-filled lattice of La2CuO4 is explained in terms of the Bose-Einstein condensation of holes of effective mass O(me). These holes move freely over an antiferromagnetic background. The mechanism is very different from the BCS mechanism. A fit to data is obtained by adjusting the interplane hopping amplitude, which turns out to be extremely small, though necessary.

©1987 The American Physical Society.

PACS: 74.20.-z 75.10.Jm 75.10.Lp

  • [*] Present address: Supercomputer Computations Research Institute, Florida State University, Tallahassee, Florida 32306.



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