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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).

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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