Major normal and superconducting parameters of high-Tc oxides
Vladimir Z. Kresin, Stuart A. Wolf
DOI 10.1103/PhysRevB.41.4278 · Physical Review B
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Abstract
The major normal and superconducting parameters of the high-Tc oxides have been evaluated. The analysis based on a Fermi-liquid approach is carried out in reciprocal space: the anisotropy of the system is reflected in the shape of the Fermi surface. The analysis is valid for any form of the Fermi curve. The small value of the Fermi energy and the Fermi velocity we obtained along with the presence of a layered structure are the key features of the cuprates. The coherence length ξ0 is evaluated and appears to be short. The value of Hc2 is calculated in a self-consistent way. The method of evaluation of the strength of the electron-phonon coupling is developed and leads to a strong coupling which, however, is not sufficient to give the observed value of Tc. The effects of anisotropy and multigap structure are discussed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La1.8Sr0.2CuO4 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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