High-temperature superconducting YSr2Cu3O7.5 under pressure
Y. Cao, T. L. Hudson, Y. S. Wang, S. H. Xu, Y. Y. Xue, C. W. Chu
DOI 10.1103/PhysRevB.58.11201 · Physical Review B
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Abstract
The transition temperature (Tc) of the high-temperature superconductor YSr2Cu3O7.5 under hydrostatic pressures up to 1.7 GPa has been measured. The Tc was observed to increase from 62.6 to 67.8 K. Such a large positive dTc/dP of ∼3 K/GPa is in strong contrast to that expected from the heavily doped nature of the sample, as suggested by the thermogravimetric and thermopower measurements.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YSr2Cu3O7.5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 62.6 | Pressure unresolved | midpoint |
| YSr2Cu3O7.5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 63.5 | Pressure unresolved | onset |
| YSr2Cu3O7.5 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 67.8 | 1.7 GPa | midpoint |
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