Anisotropic thermopower in single crystals of the high-Tc superconductor YBa2Cu3O7
Z. Z. Wang, N. P. Ong
DOI 10.1103/PhysRevB.38.7160 · Physical Review B
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Abstract
The thermopower in single crystals of YBa2Cu3O7 has quite different behavior in the in-plane (Sab) and out-of-plane (Sc) directions. Sab is positive and shows a characteristic peak above Tc while Sc (also positive) increases strongly with temperature with a dependence which may be fitted to T1.65 or AT+BT2. We discuss the role of phonon drag and band filling in affecting the sign of the in-plane thermopower.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 90 | Pressure not reported | onset |
| YBa2Cu3O7 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 93 | Pressure not reported | onset |
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