Superconducting Dome and Electronic Structure of the Nickelate Superconductors

ORAL

Abstract

The discovery of superconductivity in cuprates decades ago had stirred enduring interest in searching for analogous materials systems. In this talk, we present our observation of superconductivity in an infinite-layer nickelate thin film synthesized by a soft-chemistry approach1, and the study of its superconducting phase diagram2. This system is of particular interest due to its potential relationship with the high-Tc cuprate superconductors, in that they share a similar crystal structure and starting electronic configuration. We also highlight the key aspects of its electronic structure3, which turn out to be inherently distinct from cuprates, including the unusual role of Nd bands.

References:
[1] D. F. Li, K. Lee, B. Y. Wang, M. Osada, S. Crossley, H. R. Lee, Y. Cui, Y. Hikita, and H. Y. Hwang, Nature 572, 624-627 (2019).
[2] D. F. Li, B. Y. Wang, K. Lee, S. P. Harvey, M. Osada, B. H. Goodge, L. F. Kourkoutis, and H. Y. Hwang, Phys. Rev. Lett. 125, 027001 (2020).
[3] M. Hepting et al., Nat. Mater. 19, 381-385 (2020).

*Supported by DOE BES MSD (DE-AC02-76SF00515), the Moore Foundation (GBMF9072) and DOD AFOSR (FA 9550-16-1-0305).

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Presenters

  • 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

Authors

  • 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

  • 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

  • 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

  • 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

  • Berit H. Goodge

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

  • Hye Ryoung Lee

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

  • Yasuyuki Hikita

    • 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

  • 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