Heat-capacity investigations near the normal-superconducting transition of YBa2Cu3O7
B. Zhou, J. Buan, C. C. Huang, J. V. Waszczak, L. F. Schneemeyer
DOI 10.1103/PhysRevB.44.10408 · Physical Review B
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Abstract
A high-resolution ac quasiadiabatic calorimeter has been employed to measure the heat-capacity anomaly associated with the normal-superconducting transition of several slightly twinned YBa2Cu3O7 single-crystal samples. The heat-capacity anomaly from one of the samples displays a very sharp 10–90% jump on the high-temperature side of anomaly and can be described by a mean-field model based on the BCS theory.
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. | 91.625 | Pressure not reported | midpoint |
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