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Antichiral and nematicity-wave superconductivity
KTH, School of Engineering Sciences (SCI), Physics, Condensed Matter Theory.
Aalto Univ, Dept Appl Phys, POB 15100, FI-00076 Aalto, Finland.;Ioffe Phys Tech Inst, St Petersburg 194021, Russia..
KTH, School of Engineering Sciences (SCI), Physics.
2019 (English)In: Physical Review B, ISSN 2469-9950, E-ISSN 2469-9969, Vol. 99, no 22, article id 220508Article in journal (Refereed) Published
Abstract [en]

Larkin-Ovchinnikov superconducting state has spontaneous modulation of Cooper pair density, while Fulde-Ferrell state has a spontaneous modulation in the phase of the order parameter. We report that a quasi-two-dimensional Dirac metal, under certain conditions has principally different inhomogeneous superconducting states that by contrast have spontaneous modulation in a submanifold of a multiple-symmetries-breaking order parameter. The first state we find can be viewed as a nematic superconductor where the nematicity vector spontaneously breaks rotational and translational symmetries due to spatial modulation. The other demonstrated state is a chiral superconductor with spontaneously broken time-reversal and translational symmetries. It is characterized by an order parameter, which forms a lattice pattern of alternating chiralities.

Place, publisher, year, edition, pages
American Physical Society, 2019. Vol. 99, no 22, article id 220508
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-255306DOI: 10.1103/PhysRevB.99.220508ISI: 000473014100002Scopus ID: 2-s2.0-85068623245OAI: oai:DiVA.org:kth-255306DiVA, id: diva2:1339354
Note

QC 20190729

Available from: 2019-07-29 Created: 2019-07-29 Last updated: 2019-07-29Bibliographically approved

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Barkman, MatsBabaev, Egor

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