Flux-noise spectra around the Kosterlitz-Thouless transition for two-dimensional superconductors

Abstract

The flux-noise spectra around the Kosterlitz-Thouless transition are obtained from simulations of the two-dimensional resistively shunted junction model. In particular the dependence on the distance $d$ between the pick-up coil and the sample is investigated. The typical experimental situation corresponds to the large-$d$ limit and a simple relation valid in this limit between the complex impedance and the noise spectra is clarified. Features, which distinguish between the large- and small-$d$ limit, are identified and the possibility of observing these features in experiments is discussed.

arXiv comment12 pages including 8 figures, submitted to Phys. Rev. B

References in corpus (4)

• Dynamic Scaling of Magnetic Flux Noise Near the KTB Transition in Overdamped Josephson Junction Arrays
• 1/ω-flux-noise and dynamical critical properties of two-dimensional XY-models
• Flux noise in high-temperature superconductors
• Flux noise and Fluctuation conductivity in Unfrustrated Josephson Junction Arrays

Cited by in corpus (9)

• Vortex Fluctuations in High-Tc Films: Flux Noise Spectrum and Complex Impedance
• Probing the Berezinskii-Kosterlitz-Thouless vortex unbinding transition in two-dimensional superconductors using local noise magnetometry
• Boundary Effects on Dynamic Behavior of Josephson-Junction Arrays
• Vortex dynamics in two-dimensional Josephson junction arrays
• Evidence for Correlated Dynamics near the Berezinskii-Kosterlitz-Thouless-like Transition in Highly Underdoped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Fluctuation-dissipation theorem and flux noise in overdamped Josephson junction arrays
• Anomalous dynamic response in the two-dimensional lattice Coulomb gas model: Effects of pinning
• Magnetic-field dependence of dynamical vortex response in two-dimensional Josephson junction arrays and superconducting films
• Flux Noise in MgB2 Thin Films