Transition-temperature features of layered superconductors
T. A. Mamedov, M. de Llano, T. Firat
DOI 10.1103/PhysRevB.55.9077 · Physical Review B
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Abstract
A model theory for the superconducting transition temperature Tc is derived that is based on a generalized version of the Eliashberg equations taking into account an energy dependence in the electronic density of states N(ε). We treat an electronic structure with characteristic two-dimensional character. An analytical expression for Tc obtained for intermediate coupling establishes features of the Tc in the logarithmic van Hove scenario. Results describe the behavior of Tc vs x observed in well-annealed La2−xSrxCuO4 oxides.
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 |
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