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arXiv · 1807.00296

Hidden pair-density-wave order in cuprate superconductors

Shiping Feng·Deheng Gao·Yiqun Liu·Yingping Mou·Shuning Tan
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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.

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Shiping Feng, Deheng Gao, Yiqun Liu, Yingping Mou, Shuning Tan. 2018-07-01. Hidden pair-density-wave order in cuprate superconductors. https://doi.org/10.1007/s10948-019-5011-x

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