Long-range Coulomb effect on the antiferromagnetic ordering in electron-doped cuprate superconductors
Xin-Zhong Yan
DOI 10.1103/PhysRevB.73.052501 · Physical Review B
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Abstract
Using mean-field theory, we illustrate the long-range Coulomb effect on the antiferromagnetic ordering in the electron-doped cuprate superconductors. Because of the Coulomb exchange effect, the magnitude of the total next-nearest-neighbor hopping increases appreciably with increasing the electron doping concentration, raising the frustration to the antiferromagnetic ordering. This provides a possible explanation to the Fermi surface evolution in the electron-doped cuprate Nd2−xCexCuO4.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Nd2-xCexCuO4 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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