Signature of the d-wave gap parameter in the field dependence of the electrothermal conductivity of high-Tc superconductors up to Tc
M. Houssa, M. Ausloos, M. Pekala
DOI 10.1103/PhysRevB.54.R12713 · Physical Review B
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Abstract
We calculate the influence of a magnetic field on a transport property like the electrothermal conductivity P of high-Tc superconductors for either an anisotropic (or not) s-wave or a dx2−y2-wave gap parameter. The field dependence of the electrothermal conductivity of Bi2Sr2CaCu2O8, (BiPb)2Sr2Ca2Cu3O10, and Tl2Ba2CaCu2O8 compounds near Tc is then analyzed. It is shown that the behavior is consistent with a gap parameter of dx2−y2-wave type for reasonable values of the physical parameters and excludes an anisotropic (or not) s-wave symmetry over a temperature range extending up to Tc.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 93 | Pressure not reported | unknown |
| Bi1.84Pb0.34Sr2Ca2Cu3O10 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 105 | Pressure not reported | unknown |
| Tl2Ba2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 100 | Pressure not reported | unknown |
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