Pair Density Wave in the Pseudogap State of High Temperature Superconductors

  • Chen H
  • Vafek O
  • Yazdani A
 et al. 
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Recent scanning tunneling microscopy (STM) experiments of Bi2Sr2CaCu2O8+δ have shown ev- idence of real-space organization of electronic states at low energies in the pseudogap state[1]. We argue based on symmetry considerations as well as model calculations that the experimentally ob- servedmodulations are due to a density wave of d-wave Cooper-pairs without global phase coherence. We show that STM measurements can distinguish a pair-density-wave from more typical electronic modulations such as those due to charge density wave ordering or scattering from an onsite periodic potential.

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  • Han-dong Chen

  • Oskar Vafek

  • Ali Yazdani

  • Shou-cheng Zhang

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