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Electronic structure of the parent compound of superconducting infinite-layer nickelates

ORAL

Abstract

Very recently, the first superconducting nickelate has been discovered, opening a new field of research. The novel superconductor is a Sr-doped infinite layer nickelate NdNiO2, which is isostructural to the infinite-layer cuprates and possesses the same nominal 3d electron count. Yet, it is important to experimentally characterize the electronic state of the parent compound from which the superconductivity emerges. In this presentation, we will present data of soft x-ray spectroscopy (XAS and RIXS) near the Ni L-edge and O K-edge on parent compound RNiO2 (R = La, Nd). Together with LDA + U calculations, the gross feature of the electronic structure and a low energy effective model for the infinite layer nickelate will be discussed.

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Presenters

  • Wei-Sheng Lee

    SLAC National Accelerator Laboratory, SIMES, SLAC, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, SLAC National Accelerator Lab.

Authors

  • Matthias Hepting

    SLAC National Accelerator Laboratory, SLAC National Accelerator Lab.

  • Danfeng Li

    Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, SLAC National Accelerator Lab., Physics, Stanford University, Stanford University, Applied Physics, Stanford University

  • Chunjing Jia

    SLAC National Accelerator Laboratory, SIMES, SLAC, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, SLAC National Accelerator Lab., SLAC - Natl Accelerator Lab, Stanford University

  • Haiyu Lu

    SLAC National Accelerator Laboratory, Stanford University, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA

  • E. Pairs

    Paul Scherre Institute

  • Yi Tseng

    Paul Scherre Institute

  • X. Feng

    SLAC National Accelerator Lab.

  • Motoki Osada

    Stanford University, Physics, Stanford University, Materials Science and Engineering, Stanford University

  • Emily Been

    Physics, Stanford, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, Stanford University

  • Yasuyuki Hikita

    Applied Physics, Stanford University, SLAC National Accelerator Lab.

  • Y. Chuang

    Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA, Lawrence Berkeley Lab.

  • Zahid Hussain

    Advanced Light Source, Lawrence Berkeley National Lab, Lawrence Berkeley Lab., ALS, Lawrence Berkeley National Laboratory

  • Kejin Zhou

    I21 Inelastic X-ray Scattering, Diamond Light Source, Diamond Light Source, Diamond Light Source Ltd, Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, United Kingdom, Diamond Light Souce

  • A. Nag

    Diamond Light Souce

  • Mirian Garcia-Fernandez

    I21 Inelastic X-ray Scattering, Diamond Light Source, Diamond Light Source, Diamond Light Source Ltd, Diamond Light Souce

  • Matteo Rossi

    Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, SLAC National Accelerator Lab.

  • Hsiao-Yu Huang

    Taiwan Photon Source

  • Di-Jing Huang

    Taiwan Photon Source

  • Zhixun Shen

    Standford, Stanford University, Stanford Univeristy, Applied Physics, Stanford University, SLAC National Accelerator Laboratory, Geballe Laboratory for Advanced Materials, Department of Applied Physics, Stanford University, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, SIMES, SLAC - Natl Accelerator Lab, Stanford Univ

  • Thorsten Schmitt

    Paul Scherre Institute, Paul Scherrer Institute

  • Harold Hwang

    Institute for Materials and Energy Sciences, Stanford University, Stanford University, Department of Applied Physics, Stanford University, Applied Physics, Stanford University, SIMES, SLAC, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, SLAC National Accelerator Lab., Physics, Stanford University, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory

  • B. Moritz

    SLAC National Accelerator Lab.

  • Jan Zaanen

    Leiden University, Leiden Institute of Physics, Leiden University, Leiden University, the Netherlands

  • Thomas Devereaux

    Stanford Univ, Materials Science and Engineering, Stanford University, Stanford University, SLAC National Accelerator Laboratory, Photon Sciences, Stanford Linear Accelerator (SLAC), SIMES, SLAC, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, SLAC National Accelerator Lab.

  • Wei-Sheng Lee

    SLAC National Accelerator Laboratory, SIMES, SLAC, Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA, SLAC National Accelerator Lab.