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Checkerboard order in vortex cores from pair-density-wave superconductivity
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Condensed Matter Theory.ORCID iD: 0000-0001-5087-3115
2015 (English)In: Physical Review B. Condensed Matter and Materials Physics, ISSN 1098-0121, E-ISSN 1550-235X, Vol. 91, no 10, 104512Article in journal (Refereed) Published
Abstract [en]

We consider competing pair-density-wave (PDW) and d-wave superconducting states in a magnetic field. We show that PDW order appears in the cores of d-wave vortices, driving checkerboard charge-density-wave (CDW) order in the vortex cores, which is consistent with experimental observations. Furthermore, we find an additional CDW order that appears on a ring outside the vortex cores. This CDW order varies with a period that is twice that of the checkerboard CDW and it only appears where both PDW and d-wave order coexist. The observation of this additional CDW order would provide strong evidence for PDW order in the pseudogap phase of the cuprates. We further argue that the CDW seen by nuclear magnetic resonance at high fields is due to a PDW state that emerges when a magnetic field is applied.

Place, publisher, year, edition, pages
2015. Vol. 91, no 10, 104512
National Category
Condensed Matter Physics
URN: urn:nbn:se:kth:diva-163966DOI: 10.1103/PhysRevB.91.104512ISI: 000351036200005OAI: diva2:808029
Swedish Research Council, 642-2013-7837Swedish Research Council, 325-2009-7664

QC 20150427

Available from: 2015-04-27 Created: 2015-04-13 Last updated: 2015-04-27Bibliographically approved

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Garaud, Julien
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