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Penetration depth measurements of infinite-layer nickelates

ORAL

Abstract

The discovery of superconductivity in infinite-layer nickelates [1] has the potential to help reveal the origins of high-temperature superconductivity. To do this, we must first develop an understanding of superconductivity in nickelates by measuring their fundamental properties. In this talk, I will present our measurements of the in-plane penetration depth of (Nd,Sr)NiO2 thin films across the doping-dependent superconducting dome [2]. The penetration depth provides information about the superfluid density and pairing symmetry of the superconducting state, both of which will be important in improving our understanding of the nature of superconductivity in these materials.

[1] Li, D. et al. Superconductivity in an infinite-layer nickelate. Nature 572, 624–627 (2019).

[2] Li, D. et al. Superconducting Dome in Nd1-xSrxNiO2 Infinite Layer Films. Phys. Rev. Lett. 125, 027001 (2020).

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Presenters

  • Shannon Harvey

    Stanford Univ

Authors

  • Shannon Harvey

    Stanford Univ

  • 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

  • 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

  • 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

  • Varun Harbola

    Stanford Univ, Physics, Stanford University

  • Samuel Crossley

    Stanford Univ, Applied Physics, Stanford 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