Simulation of vortex noise in superconductors in weak applied magnetic fields
2004 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 69, no 14Article in journal (Refereed) Published
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/f(3/2). 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.
Place, publisher, year, edition, pages
2004. Vol. 69, no 14
kosterlitz-thouless transition, josephson-junction arrays, flux-noise, spectra, models, films
IdentifiersURN: urn:nbn:se:kth:diva-23412DOI: 10.1103/PhysRevB.69.144522ISI: 000221426200103ScopusID: 2-s2.0-37649028388OAI: oai:DiVA.org:kth-23412DiVA: diva2:342110
QC 201005252010-08-102010-08-102011-10-27Bibliographically approved