Hidden pair-density-wave order in cuprate superconductors
Abstract
When the Mott insulating state is suppressed by charge carrier doping, the pseudogap phenomenon emerges, where at the low-temperature limit, superconductivity coexists with some ordered electronic states. Within the framework of the kinetic-energy-driven superconductivity, the nature of the pair-density-wave order in cuprate superconductors is studied by taking into account the pseudogap effect. It is shown that the onset of the pair-density-wave order does not produce an ordered gap, but rather a novel hidden order as a result of the interplay of the charge-density-wave order with superconductivity. As a consequence, this novel hidden pair-density-wave order as a subsidiary order parameter coexists with the charge-density-wave order in the superconducting-state, and is absent from the normal-state.
Cite
@article{arxiv.1807.00296,
title = {Hidden pair-density-wave order in cuprate superconductors},
author = {Shiping Feng and Deheng Gao and Yiqun Liu and Yingping Mou and Shuning Tan},
journal= {arXiv preprint arXiv:1807.00296},
year = {2019}
}
Comments
5 pages, 1 figure, added discussions and references