Superconducting properties of polycrystalline YBa2Cu3O7−δ: Evidence for a gauge glass
W. M. Tiernan, R. B. Hallock
DOI 10.1103/PhysRevB.46.3688 · Physical Review B
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Abstract
We report measurements of ac susceptibility and I-V characteristics performed on a polycrystalline sintered sample of YBa2Cu3O7−δ near the superconducting transition at selected magnetic fields between 0.1 and 80.9 G. The behavior of χac provides evidence that this sample is a gauge-glass granular superconductor. I-V measurements performed at H=0.5, 8.1, and 80.9 G show scaling behavior consistent with a superconducting phase transition and provide evidence that the gauge-glass transition occurs at a well-defined transition temperature Tc.
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. | — | Pressure not reported | unknown |
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