Antiferromagnetic order and high-temperature superconductivity
Kerson Huang, Efstratios Manousakis
DOI 10.1103/PhysRevB.36.8302 · Physical Review B
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Abstract
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 LaCu2O4 is explained in terms of the Bose-Einstein condensation 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.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La2-xSrCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La2CuO4 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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