Low-temperature vortex dynamics in a high-temperature superconductor
Y.-Q. Song, S. Tripp, W. P. Halperin, L. Tonge, T. J. Marks
DOI 10.1103/PhysRevB.50.16570 · Physical Review B
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Abstract
Magnetic-field gradients in the mixed state of a type-II superconductor are studied using Tl205 nuclear magnetic resonance (NMR) on Tl2Ba2Ca2Cu3O10+δ. An anomalous peak was observed in the temperature dependence of the transverse relaxation rate at T/Tc≊0.25. We attribute this behavior to magnetic-field flucutations from vortex dynamics. We interpret this behavior as a crossover of the principal time scale for vortex dynamics with that of the NMR experiment, approximately 100 μs. The temperature dependence of this time scale is discussed.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Tl2Ba2Ca2Cu3O10+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 120 | Pressure not reported | onset |
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