1999/05/10 by G. Mohler, Mohler, G., D. Stroud +1
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #FOS: Physical sciences #Physics of Superconductivity and Magnetism #Quantum, superfluid, helium dynamics #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/9905125
5 figures
arxiv created 1999/05/10 · openalex publication_date 1999/05/10 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We have carried out a model calculation of the flux noise produced by vortex avalanches in a Type-II superconductor, using a simple kinetic model proposed by Bassler and Paczuski. Over a broad range of frequencies, we find that the flux noise SΦ(ω) has a power-law dependence on frequency, SΦ(ω) ∼ ω-s, with s ∼ 1.4 in reasonable agreement with experiment. In addition, for small lattices, the calculated SΦ(ω) has a high-frequency knee, which is seen in some experiments, and which is due to the finite lattice size. Deviations between calculation and experiment are attributed mostly to uncertainties in the measured critical current densities and pinning strengths of the experimental samples.