Dynamic scaling for two-dimensional superconductors, Josephson-junction arrays, and superfluids
Stephen W. Pierson, Mark Friesen, S. M. Ammirata, Jeffrey C. Hunnicutt, LeRoy A. Gorham
DOI 10.1103/PhysRevB.60.1309 · Physical Review B
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Abstract
The value of the dynamic critical exponent z is studied for two-dimensional superconducting, superfluid, and Josephson junction array systems in zero magnetic field via the Fisher-Fisher-Huse dynamic scaling. We find z≃5.6±0.3, a relatively large value indicative of nondiffusive dynamics. Universality of the scaling function is tested and confirmed for the thinnest samples. We discuss the validity of the dynamic scaling analysis as well as the previous studies of the Kosterlitz-Thouless-Berezinskii transition in these systems, the results of which seem to be consistent with simple diffusion (z=2). Further studies are discussed and encouraged.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2Ca2Cu3O10 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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