Vortex coalescence and type-1.5 superconductivity in Sr2RuO4
2012 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 86, no 6, 060513- p.Article in journal (Refereed) Published
Recently vortex coalescence was reported in superconducting Sr2RuO4 by several experimental groups for fields applied along the c axis. We argue that Sr2RuO4 is a type-1.5 superconductor with long-range attractive, short-range repulsive intervortex interaction. The type-1.5 behavior stems from an interplay of the two orbital degrees of freedom describing this chiral superconductor together with the multiband nature of the superconductivity. These multiple degrees of freedom give rise to multiple coherence lengths, some larger and some smaller than the magnetic field penetration length, resulting in nonmonotonic intervortex forces.
Place, publisher, year, edition, pages
2012. Vol. 86, no 6, 060513- p.
Ii Superconductors, Order-Parameter, Vortices
IdentifiersURN: urn:nbn:se:kth:diva-103152DOI: 10.1103/PhysRevB.86.060513ISI: 000308127600002ScopusID: 2-s2.0-84865700034OAI: oai:DiVA.org:kth-103152DiVA: diva2:559423
FunderKnut and Alice Wallenberg FoundationSwedish Research Council
QC 201210092012-10-092012-10-042012-10-09Bibliographically approved