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Vortices with fractional flux in two-gap superconductors and in extended Faddeev model
2002 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 89, no 6Article in journal (Refereed) Published
Abstract [en]

We discuss linear topological defects allowed in two-gap superconductors and equivalent extended Faddeev model. We show that, in these systems, there exist vortices which carry an arbitrary fraction of magnetic flux quantum. Besides that, we discuss topological defects which do not carry magnetic flux and describe features of ordinary one-magnetic-flux-quantum vortices in the two-gap system. The results could be relevant for the newly discovered two-band superconductor MgB2.

Place, publisher, year, edition, pages
2002. Vol. 89, no 6
Keyword [en]
mgb2
Identifiers
URN: urn:nbn:se:kth:diva-21742DOI: 10.1103/PhysRevLett.89.067001ISI: 000177009600036OAI: oai:DiVA.org:kth-21742DiVA: diva2:340440
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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