Superconductivity in single-phase Y1Ba2Cu3O9−x and thermoelectric power measurement
Z. G. Khim, S. C. Lee, J. H. Lee, B. J. Suh, Y. W. Park, C. Park, I. S. Yu, J. C. Park
DOI 10.1103/PhysRevB.36.2305 · Physical Review B
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Abstract
Single-phase Y1Ba2Cu3O9−x has been synthesized and characterized. Although x-ray diffraction shows only the Y1Ba2Cu3O9−x phase which has an orthorhombically distorted perovskite structure, resistance measurements reveal two transition temperatures, Tc1=95.5 K and Tc2=93 K. Thermoelectric power measurements indicate that Y1Ba2Cu3O9−x is of n type. Strong enhancement and unusual temperature dependence for the "phonon-drag" effect which might be indicative of an unusual superconducting mechanism in this material have been observed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Y1Ba2Cu3O9-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 95.5 | Pressure not reported | onset |
| Y1Ba2Cu3O9-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 93 | Pressure not reported | midpoint |
| Y1Ba2Cu3O9-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 91 | Pressure not reported | zero_resistance |
| YBa2Cu3O9-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 93.5 | Pressure not reported | onset |
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