Scaling of vortex transport properties in high-temperature superconductors
N.-C. Yeh, D. S. Reed, W. Jiang, U. Kriplani, F. Holtzberg, A. Gupta, B. D. Hunt, R. P. Vasquez, M. C. Foote, L. Bajuk
DOI 10.1103/PhysRevB.45.5654 · Physical Review B
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Abstract
Using both dc and low-frequency-ac (10–105 Hz) transport measurements in low magnetic fields (0–6.3 kOe), we find that the vortex transport properties of YBa2Cu2.98Au0.02Ox (x=6.97±0.02) single crystals are consistent with a three-dimensional second-order vortex solid melting transition, with a static exponent ν=0.9±0.2, a dynamic exponent z=2.0±0.2, and a characteristic current-density exponent μ=0.5±0.1. In contrast, transport properties of epitaxial films generally agree with the Ambegaokar-Halperin model.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu2.98Au0.02Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92.9 | Pressure unresolved | onset |
| YBa2Cu2.98Au0.02Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 92.9 | Pressure unresolved | onset |
| YBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 89 | Pressure unresolved | unknown |
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