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A zero-temperature study of vortex mobility in two-dimensional vortex glass models
2002 (English)In: Europhysics letters, ISSN 0295-5075, E-ISSN 1286-4854, Vol. 60, no 3, 439-445 p.Article in journal (Refereed) Published
Abstract [en]

Three different vortex glass models are studied by examining the energy barrier against vortex motion cross the system. In the two-dimensional gauge glass this energy barrier is found to increase logarithmically with system size which opens up for the existence of low-temperature phase with zero resistivity. Associated with the large-energy barriers is breaking of ergodicity which explains why the well-established results from equilibrium studies could fail. The behavior of the more realistic random pinning model is however different with decreasing energy barriers and no finite critical temperature.

Place, publisher, year, edition, pages
2002. Vol. 60, no 3, 439-445 p.
Keyword [en]
2-dimensional xy-model, gauge glass, random-superconductor, phase-transitions, spin-glasses, monte-carlo, order
Identifiers
URN: urn:nbn:se:kth:diva-21994ISI: 000178821900017OAI: oai:DiVA.org:kth-21994DiVA: diva2:340692
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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