Antichiral and nematicity-wave superconductivity

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Research units

  • KTH Royal Institute of Technology
  • RAS - Ioffe Physico Technical Institute


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.


Original languageEnglish
Article number220508
Pages (from-to)1-5
Number of pages5
JournalPhysical Review B
Issue number22
Publication statusPublished - 27 Jun 2019
MoE publication typeA1 Journal article-refereed

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