Interfacial Mott state in iridate-nickelate superlattices

ORAL

Abstract

In new SrIrO3/LaNiO3 superlattices up to a full electron transfer at the interface from Ir to Ni is experimentally observed, triggering a massive structural and electronic reconstruction. The large crystal eld splitting from the distorted interfacial IrO6 octahedra surprisingly dominates over the spin-orbit coupling, and together with the Hund's coupling results in the high-spin (S = 1) congurations on both Ir and Ni sites. First-principles calculations agree well with the experimental results, supporting the formation of an intricate Mott state in the superlattices.

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Presenters

  • Xiaoran Liu

    Rutgers University, New Brunswick

Authors

  • Xiaoran Liu

    Rutgers University, New Brunswick

  • Michele Kotiuga

    Rutgers University, New Brunswick

  • Heung Sik Kim

    Rutgers University, New Brunswick, Department of Physics and Astronomy, Rutgers University

  • Alpha N'Diaye

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

  • Yongseong Choi

    Argonne National Laboratory, Advanced Photon Source, Argonne National Laboratory, Advanced Photon Source, Argonne National Lab

  • Yanwei Cao

    Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Key Laboratory of Magnetic Materials and Devices, Ningbo Institute of Industrial Technology, Chinese Academy of Sciences., Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Chinese Academy of Science

  • Banabir Pal

    Rutgers University, New Brunswick

  • Fangdi Wen

    Rutgers University, New Brunswick

  • Mikhail Kareev

    Rutgers University, New Brunswick

  • John William Freeland

    Advanced Photon Source, Argonne National Laboratory, Advanced Photon Source

  • Daniel Haskel

    Advanced Photon Source, Argonne National Laboratory, Advanced Photon Source, Argonne National Lab

  • Padraic Shafer

    Advanced Light Source, Lawrence Berkeley National Laboratory, Lawrence Berkeley National Laboratory, Advanced Light Source

  • Elke Arenholz

    Advanced Light Source, Lawrence Berkeley National Laboratory, Lawrence Berkeley National Laboratory, Advanced Light Source

  • Kristjan Haule

    Rutgers University, New Brunswick, Physics and Astronomy, Rutgers University, Department of Physics and Astronomy, Rutgers University, Department of Physics, Rutgers University, Physics and Astronomy, Rutgers University, Piscataway, NJ, United States

  • David Vanderbilt

    Rutgers University, New Brunswick, Department of Physics and Astronomy, Rutgers University, Department of Physics and Astronomy, Rutgers University, Piscataway, NJ-08854, USA, Physics and Astronomy, Rutgers University, New Brunswick, Department of Physics and Astronomy, Rutgers University, New Jersey, Rutgers University, USA, Rutgers Univ, Physics and Astronomy, Rutgers University, Piscataway, NJ, United States, Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, USA

  • Karin Rabe

    Rutgers University, New Brunswick, Department of Physics and Astronomy, Rutgers University, Piscataway, NJ-08854, USA, Physics and Astronomy, Rutgers University, Piscataway, NJ, United States

  • Jak Chakhalian

    Rutgers University, New Brunswick