Pressure dependence of Tc to 17 GPa with and without relaxation effects in superconducting YBa2Cu3Ox
S. Sadewasser, J. S. Schilling, A. P. Paulikas, B. W. Veal
DOI 10.1103/PhysRevB.61.741 · Physical Review B
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Abstract
Hydrostatic high-pressure studies to 17 GPa were carried out on superconducting YBa2Cu3Ox over the full range of oxygen content x. The observed bell-shaped Tc(P) dependences are found to depend markedly on the temperature at which the pressure is changed. The time-dependent relaxation processes are studied using both Tc and the electrical resistivity at 298 K as probes. The activation volume for oxygen diffusion is determined from the pressure-dependent activation energy and compared with estimates from a simple hard-sphere model.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 13.5 | Pressure unresolved | unknown |
| YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 17.1 | Pressure unresolved | unknown |
| YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 34.4 | Pressure unresolved | unknown |
| YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 64.2 | Pressure unresolved | unknown |
| YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92.5 | Pressure unresolved | unknown |
| YBa2Cu3O6.41 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 23 | 4 GPa | unknown |
| YBa2Cu3O6.41 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 45 | 13 GPa | unknown |
| Tl2Ba2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| PrBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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