Robustness of the Van Hove Scenario for High-Tc Superconductors
V. Yu. Irkhin, A. A. Katanin, M. I. Katsnelson
DOI 10.1103/PhysRevLett.89.076401 · Physical Review Letters
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Abstract
The pinning of the Fermi level to the Van Hove singularity and the formation of flat bands in the two-dimensional t−t′ Hubbard model is investigated by the renormalization group technique. The “Van Hove” scenario of non-Fermi-liquid behavior for high-Tc compounds can take place in a broad enough range of the hole concentrations. The results are in qualitative agreement with the recent angle-resolved photoemission spectroscopy data on La2CuO4.
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 |
| 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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