Dynamic scaling for 2D superconductors, Josephson junction arrays and superfluids

Details Dynamic scaling for 2D superconductors, Josephson junction arrays and superfluids Dynamic scaling for 2D superconductors, Josephson junction arrays and superfluids

1999-01-26

arxiv.org/abs/cond-mat/9901295v1

Physics

Condensed Matter

Superconductivity

19 pages in two-column RevTex, 8 embedded EPS figures

Scientific paper

10.1103/PhysRevB.60.1309

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 $z\simeq5.6\pm0.3$, a relatively large value indicative of non-diffusive 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.

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