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Unusual mechanism of vortex viscosity generated by mixed normal modes in superconductors with broken time reversal symmetry
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics.
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics.
2013 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 88, no 22, 220504- p.Article in journal (Refereed) Published
Abstract [en]

We show that under certain conditions, multiband superconductors with broken time reversal symmetry have a vortex viscosity-generating mechanism which is different from that in conventional superconductors. It appears due to the existence of a mixed superfluid phase-density mode inside the vortex core. This contribution is dominant near the time reversal symmetry-breaking phase transition. The results could be relevant for the three-band superconductor Ba1-xKxFe2As2.

Place, publisher, year, edition, pages
2013. Vol. 88, no 22, 220504- p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-139451DOI: 10.1103/PhysRevB.88.220504ISI: 000328677800002Scopus ID: 2-s2.0-84890661106OAI: oai:DiVA.org:kth-139451DiVA: diva2:687667
Funder
Swedish Research CouncilKnut and Alice Wallenberg Foundation
Note

QC 20140114

Available from: 2014-01-15 Created: 2014-01-13 Last updated: 2017-12-06Bibliographically approved

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