Simulation of vortex noise in superconductors in weak applied magnetic fields
Anders Vestergren, Mats Wallin
DOI 10.1103/PhysRevB.69.144522 · Physical Review B
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Abstract
The magnetic-field dependence of flux noise spectra in superconductors is studied by Monte Carlo simulation of vortex dynamics in two- and three-dimensional vortex models. Without an applied magnetic field the flux noise power spectra typically vary with frequency approximately like 1/f3/2. In this paper we show that in the presence of a weak magnetic field, the spectra instead typically vary approximately like 1/f in a range of temperatures and frequencies. Both types of behavior have been observed in different experiments.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| YBa2Cu3O7-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Bi2Sr2CaCu2O8-x Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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