Nonlocal Conductivity in the Vortex-Liquid Regime of a Two-Dimensional Superconductor

Details Nonlocal Conductivity in the Vortex-Liquid Regime of a Two-Dimensional Superconductor Nonlocal Conductivity in the Vortex-Liquid Regime of a Two-Dimensional Superconductor

1996-04-30

arxiv.org/abs/cond-mat/9604186v1

Physics

Condensed Matter

18 pages, revtex, 6 postscript figures

Scientific paper

10.1103/PhysRevB.54.12413

We have simulated the time-dependent Ginzburg-Landau equation with thermal fluctuations, to study the nonlocal dc conductivity of a superconducting film. Having examined points in the phase diagram at a wide range of temperatures and fields below the mean-field upper critical field, we find a portion of the vortex-liquid regime in which the nonlocal ohmic conductivity in real space is negative over a distance several times the spacing between vortices. The effect is suppressed when driven beyond linear response. Earlier work had predicted the existence of such a regime, due to the high viscosity of a strongly-correlated vortex liquid. This behavior is clearly distinguishable from the monotonic spatial fall-off of the conductivity in the higher temperature or field regimes approaching the normal state. The possibilities for experimental study of the nonlocal transport properties are discussed.

Affiliated with

Also associated with

No associations

Rating

Nonlocal Conductivity in the Vortex-Liquid Regime of a Two-Dimensional Superconductor does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Nonlocal Conductivity in the Vortex-Liquid Regime of a Two-Dimensional Superconductor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nonlocal Conductivity in the Vortex-Liquid Regime of a Two-Dimensional Superconductor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-502082