Abstract
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 language | English |
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Article number | 220508 |
Pages (from-to) | 1-5 |
Number of pages | 5 |
Journal | Physical Review B |
Volume | 99 |
Issue number | 22 |
DOIs | |
Publication status | Published - 27 Jun 2019 |
MoE publication type | A1 Journal article-refereed |