Transport Characterization of Infinite Layer Nickelate Superconductors

ORAL

Abstract

The recently discovered infinite layer nickelate superconductor presents a potential new family of unconventional superconductors [1]. A wide range of perspectives [2,3], emphasizing single- or multi-orbital electronic structure, Kondo or Hund’s coupling, and analogies to cuprates, have been proposed. Clearly, further experimental characterization of the superconducting state is needed to develop a foundational understanding of the nickelates. Furthermore, a detailed characterization of the difference between the nickelates and cuprates may provide new insights into the ingredients of superconductivity in layered oxide systems. As a step in this direction, we investigate and report the magnetotransport properties of nickelates in both the normal and superconducting state, with a focus on the anisotropic upper critical field.

[1] Li, D. et al. Superconductivity in an infinite-layer nickelate. Nature 572, 624–627 (2019).
[2] Lee, K.-W. & Pickett, W. E. Infinite-layer LaNiO2: Ni1+ is not Cu2+. Phys. Rev. B 70, 165109 (2004).
[3] Jiang, M., Berciu, M. & Sawatzky, G. A. Critical nature of the Ni spin state in doped NdNiO2. Phys. Rev. Lett. 124, 207004 (2020).

*Supported by the Moore Foundation (GBMF9072) and DOD AFOSR (FA 9550-16-1-0305).

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Presenters

  • Bai Yang Wang

    • Department of Physics, Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC - Natl Accelerator Lab
    • Stanford Univ
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • Stanford University

Authors

  • Bai Yang Wang

    • Department of Physics, Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC - Natl Accelerator Lab
    • Stanford Univ
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • Stanford University

  • Danfeng Li

    • Department of Applied Physics, Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC - Natl Accelerator Lab
    • Stanford Univ
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • Stanford University

  • Berit H. Goodge

    • School of Applied and Engineering Physics, Cornell University
    • Applied and Engineering Physics, Cornell University

  • Kyuho Lee

    • Department of Physics, Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC - Natl Accelerator Lab
    • Stanford Univ
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • Stanford University

  • Motoki Osada

    • Department of Applied Physics, Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC - Natl Accelerator Lab
    • Stanford Univ
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • Stanford University

  • Shannon P. Harvey

    • Stanford Univ
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory

  • Lena Fitting Kourkoutis

    • School of Applied and Engineering Physics, Cornell University
    • Applied and Engineering Physics, Cornell University
    • Cornell University

  • Malcolm R Beasley

    • Stanford Univ

  • Harold Hwang

    • Department of Applied Physics, Stanford University
    • Stanford Institute for Materials and Energy Sciences, SLAC - Natl Accelerator Lab
    • Stanford Univ
    • Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory
    • Stanford University
    • Standford University
    • Stanford Institute for Materials and Energy Sciences, Stanford University and SLAC National Accelerator Laboratory
    • SIMES, SLAC
    • Applied Physics, Stanford University