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Thermoelectric Signatures of Time-Reversal Symmetry Breaking States in Multiband Superconductors
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics.ORCID iD: 0000-0001-5087-3115
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics.
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Statistical Physics.
2016 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 116, no 9, 097002Article in journal (Refereed) PublishedText
Abstract [en]

We show that superconductors with broken time-reversal symmetry have very specific magnetic and electric responses to inhomogeneous heating. A local heating of such superconductors induces a magnetic field with a profile that is sensitive to the presence of domain walls and crystalline anisotropy of superconducting states. A nonstationary heating process produces an electric field and a charge imbalance in different bands. These effects can be measured and used to distinguish s + is and s + id superconducting states in the candidate materials such as Ba1-xKxFe2As2.

Place, publisher, year, edition, pages
American Physical Society , 2016. Vol. 116, no 9, 097002
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-184957DOI: 10.1103/PhysRevLett.116.097002ISI: 000371420600011ScopusID: 2-s2.0-84960905810OAI: oai:DiVA.org:kth-184957DiVA: diva2:917813
Funder
Swedish Research Council, 642-2013-7837
Note

QC 20160407

Available from: 2016-04-07 Created: 2016-04-07 Last updated: 2016-04-07Bibliographically approved

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