Magnetism in iridate heterostructures leveraged by structural distortions

ORAL

Abstract

Heterostructuring of complex oxides into superlattices is an emerging method that provides new avenues to stabilize ground states unavailable to bulk synthesis. Artificial analogues to the Ruddlesen-Popper series iridates, composed of metallic SrIrO3 interspaced with band insulating SrTiO3, are shown to conserve the bulk-like spin-flop transition through resonant elastic scattering. However, measurements of the magnetic excitation spectrum with resonant inelastic scattering evidence a strong alteration in the stability of the magnetic ground state, driven by structural distortions not present in the bulk materials. These results point to heterostructuring as a powerful method for modulating the magnetic ground state of complex oxides hosting strong spin-orbit coupling.

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Presenters

  • Derek Meyers

    • Brookhaven National Laboratory
    • Condensed Matter Physics and Materials Science, Brookhaven National Laboratory
    • Brookhaven Natl Lab

Authors

  • Derek Meyers

    • Brookhaven National Laboratory
    • Condensed Matter Physics and Materials Science, Brookhaven National Laboratory
    • Brookhaven Natl Lab

  • Yue Cao

    • CMPMSD, Brookhaven National lab
    • Condensed Matter Physics and Material Science Department, Brookhaven National Laboratory
    • Brookhaven Natl Lab

  • Gilberto Fabbris

    • Brookhaven National Laboratory
    • Brookhaven Natl Lab
    • Advanced Photon Source, Argonne National Laboratory

  • Neil Robinson

    • Brookhaven Natl Lab

  • Lin Hao

    • Univ of Tennessee, Knoxville
    • University of Tennessee

  • Clayton Frederick

    • Univ of Tennessee, Knoxville
    • University of Tennessee

  • Nathan Traynor

    • University of Tennessee

  • Junyi Yang

    • Univ of Tennessee, Knoxville
    • University of Tennessee

  • Jiaqi Lin

    • Institute of Physics

  • Mary Upton

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

  • Diego Casa

    • Advanced Phonon Source, Argonne National Laboratory
    • Argonne National Laboratory
    • Argonne National Lab

  • Jong Woo Kim

    • Argonne National Laboratory
    • The Advanced Photon Source, Argonne National Laboratory
    • Advanced Photon Source, Argonne National Laboratory
    • Argonne National Labs

  • Thomas Gog

    • Argonne National Laboratory
    • Argonne National Lab

  • Jenia Karapetrova

    • Argonne National Laboratory

  • Yongseong Choi

    • Argonne National Laboratory
    • Argonne Natl Lab
    • Advanced Photon Source, Argonne National Laboratory
    • Argonne National Lab
    • Advanced Photon Sources , Argonne National Laboratory

  • Daniel Haskel

    • Advanced Photon Source, Argonne National Laboratory
    • Argonne National Laboratory
    • Argonne Natl Lab
    • Argonne Natl Labs

  • Philip Ryan

    • Argonne National Laboratory
    • Argonne National Labs

  • Lukas Horak

    • Charles University

  • Xuerong Liu

    • Institute of Physics

  • Jian Liu

    • Department of Physics and Astronomy, The University of Tennessee
    • Univ of Tennessee, Knoxville
    • University of Tennessee
    • University of Tennessee-Knoxville

  • Mark Dean

    • Brookhaven National Laboratory
    • Condensed Matter Physics and Materials Science, Brookhaven National Laboratory
    • Brookhaven Natl Lab
    • Department of Condensed Matter and Materials Science, Brookhaven National Laboratory