Unusual mechanism of vortex viscosity generated by mixed normal modes in superconductors with broken time reversal symmetry
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
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.
IdentifiersURN: urn:nbn:se:kth:diva-139451DOI: 10.1103/PhysRevB.88.220504ISI: 000328677800002ScopusID: 2-s2.0-84890661106OAI: oai:DiVA.org:kth-139451DiVA: diva2:687667
FunderSwedish Research CouncilKnut and Alice Wallenberg Foundation
QC 201401142014-01-152014-01-132014-01-21Bibliographically approved