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Pair density wave at high magnetic fields in cuprates with charge and spin orders

Author

Listed:
  • Zhenzhong Shi

    (Florida State University
    Duke University)

  • P. G. Baity

    (Florida State University
    Florida State University
    University of Glasgow)

  • J. Terzic

    (Florida State University)

  • T. Sasagawa

    (Tokyo Institute of Technology)

  • Dragana Popović

    (Florida State University
    Florida State University)

Abstract

In underdoped cuprates, the interplay of the pseudogap, superconductivity, and charge and spin ordering can give rise to exotic quantum states, including the pair density wave (PDW), in which the superconducting (SC) order parameter is oscillatory in space. However, the evidence for a PDW state remains inconclusive and its broader relevance to cuprate physics is an open question. To test the interlayer frustration, the crucial component of the PDW picture, we perform transport measurements on charge- and spin-stripe-ordered La1.7Eu0.2Sr0.1CuO4 and La1.48Nd0.4Sr0.12CuO4 in perpendicular magnetic fields (H⊥), and also with an additional field applied parallel to CuO2 layers (H∥). We detect several phenomena predicted to arise from the existence of a PDW, including an enhancement of interlayer SC phase coherence with increasing H∥. These data also provide much-needed transport signatures of the PDW in the regime where superconductivity is destroyed by quantum phase fluctuations.

Suggested Citation

  • Zhenzhong Shi & P. G. Baity & J. Terzic & T. Sasagawa & Dragana Popović, 2020. "Pair density wave at high magnetic fields in cuprates with charge and spin orders," Nature Communications, Nature, vol. 11(1), pages 1-7, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17138-z
    DOI: 10.1038/s41467-020-17138-z
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