Incommensurate magnetism in cuprate materials
F. Mancini, D. Villani, H. Matsumoto
DOI 10.1103/PhysRevB.57.6145 · Physical Review B
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Abstract
In the low-doping region, an incommensurate magnetic phase is observed in La2−xSrxCuO4. By means of the composite-operator method we show that the single-band two-dimensional Hubbard model reproduces with good accuracy the experimental situation. In the higher-doping region, where experiments are not available, the incommensurability is depressed owing to the van Hove singularity near the Fermi level. By changing doping, the calculated incommensurability amplitude and the experimental critical temperature evolve in a similar way, suggesting a close relation between superconductivity and incommensurate magnetism.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La2-xSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La2-xBaxSrxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| YBa2Cu3O6-y Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| 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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