New Insight into the Fluctuations of the Moving Vortex Lattice: Non-Gaussian Noise and Levy Flights

Details New Insight into the Fluctuations of the Moving Vortex Lattice: Non-Gaussian Noise and Levy Flights New Insight into the Fluctuations of the Moving Vortex Lattice: Non-Gaussian Noise and Levy Flights

2006-03-29

arxiv.org/abs/cond-mat/0603790v1

Physics

Condensed Matter

Superconductivity

accepted for publication in Fluctuations and noise letters

Scientific paper

We report measurements and analysis of the voltage noise due the to vortex motion, performed in superconducting Niobium micro-bridges. Noise in such small systems exhibits important changes from the behavior commonly reported in macroscopic samples. In the low biasing current regime, the voltage fluctuations are shown to deviate substantially from the Gaussian behavior which is systematically observed at higher currents in the so called flux-flow regime. The responsibility of the spatial inhomogeneities of the critical current in this deviation from Gaussian behavior is emphasized. We also report on the first investigation of the effect of an artificial pinning array on the voltage noise statistics. It is shown that the fluctuations can lose their stationarity, and exhibit a Levy flight-like behavior.

Affiliated with

Also associated with

No associations

Rating

New Insight into the Fluctuations of the Moving Vortex Lattice: Non-Gaussian Noise and Levy Flights 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 New Insight into the Fluctuations of the Moving Vortex Lattice: Non-Gaussian Noise and Levy Flights, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Insight into the Fluctuations of the Moving Vortex Lattice: Non-Gaussian Noise and Levy Flights will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-585764