Pressure and magnetic-field effects on the onset of dissipation in Hg0.82Re0.18Ba2Ca2Cu3O8+δ ceramic superconductors
J. L. González, E. S. Yugue, E. Baggio-Saitovitch, M. T. D. Orlando, E. V. L. de Mello
DOI 10.1103/PhysRevB.63.054516 · Physical Review B
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Abstract
The pressure and magnetic-field effects on a Hg0.82Re0.18Ba2Ca2Cu3O8+δ sample with optimum oxygen content was studied. The onset temperature of the dissipation (Ton) for a fixed applied magnetic field increases with the pressure. The H(Ton) curves, taken at different pressures, may be superposed when Ton is scaled with the pressure-dependent critical temperature, Tc(P), suggesting that the mechanism which leads to an increase of Tc also improves the intergrain coupling. Our data are discussed in the frame of the phase slippage model giving some insight on the influence of the pressure on the transport properties of our sample.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Hg0.82Re0.18Ba2Ca2Cu3O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 133 | Pressure not reported | onset |
| Hg0.82Re0.18Ba2Ca2Cu3O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 131.9 | Pressure unresolved | midpoint |
| Hg0.82Re0.18Ba2Ca2Cu3O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 132.7 | 0.32 GPa | midpoint |
| Hg0.82Re0.18Ba2Ca2Cu3O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 133.2 | 0.59 GPa | midpoint |
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