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Universal superconducting precursor in three classes of unconventional superconductors

Author

Listed:
  • D. Pelc

    (University of Minnesota)

  • Z. Anderson

    (University of Minnesota)

  • B. Yu

    (University of Minnesota)

  • C. Leighton

    (University of Minnesota)

  • M. Greven

    (University of Minnesota)

Abstract

A pivotal challenge posed by unconventional superconductors is to unravel how superconductivity emerges upon cooling from the generally complex normal state. Here, we use nonlinear magnetic response, a probe that is uniquely sensitive to the superconducting precursor, to uncover remarkable universal behaviour in three distinct classes of oxide superconductors: strontium titanate, strontium ruthenate, and the cuprate high-Tc materials. We find unusual exponential temperature dependence of the diamagnetic response above the transition temperature Tc, with a characteristic temperature scale that strongly varies with Tc. We correlate this scale with the sensitivity of Tc to local stress and show that it is influenced by intentionally-induced structural disorder. The universal behaviour is therefore caused by intrinsic, self-organized structural inhomogeneity, inherent to the oxides’ perovskite-based structure. The prevalence of such inhomogeneity has far-reaching implications for the interpretation of electronic properties of perovskite-related oxides in general.

Suggested Citation

  • D. Pelc & Z. Anderson & B. Yu & C. Leighton & M. Greven, 2019. "Universal superconducting precursor in three classes of unconventional superconductors," Nature Communications, Nature, vol. 10(1), pages 1-6, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-10635-w
    DOI: 10.1038/s41467-019-10635-w
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    Cited by:

    1. Choon, S.L. & Lim, H.N. & Ibrahim, I. & Zainal, Z. & Tan, K.B. & Foo, C.Y. & Ng, C.H., 2023. "New potential materials in advancement of photovoltaic and optoelectronic applications: Metal halide perovskite nanorods," Renewable and Sustainable Energy Reviews, Elsevier, vol. 171(C).
    2. Lichen Wang & Guanhong He & Zichen Yang & Mirian Garcia-Fernandez & Abhishek Nag & Kejin Zhou & Matteo Minola & Matthieu Le Tacon & Bernhard Keimer & Yingying Peng & Yuan Li, 2022. "Paramagnons and high-temperature superconductivity in a model family of cuprates," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    3. S. Griffitt & M. Spaić & J. Joe & Z. W. Anderson & D. Zhai & M. J. Krogstad & R. Osborn & D. Pelc & M. Greven, 2023. "Local inversion-symmetry breaking in a bismuthate high-Tc superconductor," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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