paper

Intertwined Order in a Frustrated 4-leg Cylinder

arXiv:1610.04300 · doi:10.1103/PhysRevB.95.155116

Abstract

We report a density-matrix renormalization group study of the - model with nearest ( & ) and next-nearest ( & ) interactions on a 4-leg cylinder with concentration of doped holes. We observe an astonishingly complex interplay between uniform -wave superconductivity (SC) and strong spin and charge density wave ordering tendencies (SDW and CDW). Depending on parameters, the CDWs can be commensurate with period 4 or 8. By comparing the charge ordering vectors with , we rule out Fermi surface nesting-induced density wave order in our model. Magnetic frustration (i.e. ) significantly quenches SDW correlations with little effect on the CDW. Typically, the SC order is strongly modulated at the CDW ordering vector and exhibits -wave symmetry around the cylinder. There is no evidence of a near-degenerate tendency to pair-density wave (PDW) ordering, charge 4e SC, or orbital current order.

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