High-magnetic-field study of superconducting YBa2Cu3O7−δ
J. S. Moodera, P. M. Tedrow, J. E. Tkaczyk
DOI 10.1103/PhysRevB.36.8329 · Physical Review B
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Abstract
The resistance of single-phase samples of YBa2Cu3O7−δ has been measured as a function of temperature in magnetic fields up to 23 T. The nearly linear temperature dependence of the resistivity characteristic of this high-Tc material was observed from room temperature down to about 120 K. Between 120 K and Tc0∼92.5 K the resistivity drops more quickly. Analysis shows this behavior to be consistent with the effect of three-dimensional superconducting fluctuations as was shown by Tsuei et al. for zero magnetic field. A critical-field slope of 3.2 T/K is obtained.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92.5 | Pressure unresolved | zero_resistance |
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