From antiferromagnetism to d-wave superconductivity in the two-dimensional t-J model
Matteo Calandra, Sandro Sorella
DOI 10.1103/PhysRevB.61.R11894 · Physical Review B
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Abstract
We have found that the two dimensional t−J model, for the physical parameter range J/t=0.4 reproduces the main experimental qualitative features of high-Tc copper oxide superconductors: d-wave superconducting correlations are strongly enhanced upon small doping and clear evidence of off-diagonal long-range order is found at the optimal doping δ≈0.15. On the other hand, antiferromagnetic long-range order, clearly present at zero hole doping, is suppressed at small hole density with clear absence of antiferromagnetism at δ>∼0.1.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| CuO2 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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