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Vortex coalescence and type-1.5 superconductivity in Sr2RuO4
KTH, School of Engineering Sciences (SCI), Theoretical Physics.ORCID iD: 0000-0001-5087-3115
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics.
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
Abstract [en]

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.
Keyword [en]
Ii Superconductors, Order-Parameter, Vortices
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-103152DOI: 10.1103/PhysRevB.86.060513ISI: 000308127600002Scopus ID: 2-s2.0-84865700034OAI: oai:DiVA.org:kth-103152DiVA: diva2:559423
Funder
Knut and Alice Wallenberg FoundationSwedish Research Council
Note

QC 20121009

Available from: 2012-10-09 Created: 2012-10-04 Last updated: 2017-12-07Bibliographically approved

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