Superconducting-state enhancement of thermal conductivity in the cuprates: Correlation with the pair density
Joshua L. Cohn
DOI 10.1103/PhysRevB.53.R2963 · Physical Review B
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Abstract
The systematics of the superconducting-state enhancements of in-plane thermal conductivity for YBa2Cu3O6+x (Y-123), Bi2Sr2CaCu2O8, Tl2Ba2CuO6, and La2−xSrxCuO4 single crystals are examined. For Y-123 the enhancements are shown to correlate with specific-heat jumps, a measure of the superconducting pair density. The substantially larger enhancements observed for Y-123 are attributed to the condensate arising from oxygen-filled CuO chains. We discuss the constraints imposed by measurements of microwave conductivity on the electronic contribution to this phenomenon.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92 | Pressure not reported | unknown |
| YBa2Cu3O6+x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 88 | Pressure not reported | unknown |
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