Scattering of normal excitations by superconducting fluctuations in single-crystal and granular copper oxide superconductors
J. A. Veira, Félix Vidal
DOI 10.1103/PhysRevB.42.8748 · Physical Review B
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Abstract
By using a unified empirical procedure, the intrinsic paraconductivity in the ab plane, Δσi, is extracted from different available data for resistivity rounding in single-crystal and granular YBa2Cu3O7−δ samples, and from data in Bi1.5Pb0.5Sr2Ca2Cu3Oy granular samples. These results strongly suggest that both high-temperature superconductor systems will have relatively strong pair-breaking effects, and that Δσi may be explained by direct superconducting order-parameter-fluctuation effects alone.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Bi1.5Pb0.5Sr2Ca2Cu3Oy Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 110 | Pressure not reported | unknown |
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