Resonant Inelastic X-ray Scattering studies of Rare Earth Hexaborides

ORAL

Abstract

We present new hard-X-ray Resonant Inelastic X-ray Scattering (RIXS) data at the L edges of several rare-earth hexaborides. Our incident-energy-, momentum-, and polarization-dependent measurements display some features which appear to be well described using density functional theory calculations related to 5d bands in these materials. Polarization-dependent data shows anomalies particularly at high incident energy in the divalent materials and we propose a process which describes the origin of this scattering. Our investigations lay the groundwork for future high energy resolution RIXS studies in materials based on f electrons, where moment screening, hybridization, and mixed valency control the low-energy behavior.

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Presenters

  • Donal Sheets

    Univ of Connecticut - Storrs

Authors

  • Donal Sheets

    Univ of Connecticut - Storrs

  • Sahan Handunkanda

    Univ of Connecticut - Storrs, University of Connecticut, Department of Physics, University of Connecticut

  • Erin Curry

    Department of Physics, Institute of Material Science, and Department of Material Science and Engineering, University of Connecticut, Univ of Connecticut - Storrs

  • Vincent Flynn

    Physics, Dartmouth

  • Jian-Xin Zhu

    Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos National Laboratory, Los Alamos National Laboratory, Theoretical Division, Theoretical Division, Los Alamos National Laboratory, Los Alamos Natl Lab

  • Maxim Dzero

    Kent State Univ - Kent, Physics, Kent State Univ - Kent, Kent State, Kent State University

  • Diego Casa

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

  • Mary Upton

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

  • Jung Ho Kim

    Argonne National Lab

  • Thomas Gog

    Argonne National Laboratory, Argonne National Lab

  • Priscilla Rosa

    Los Alamos National Laboratory

  • Zachary Fisk

    Physics and Astronomy, University of California, Department of Physics and Astronomy, Univ of California - Irvine, Department of Physics and Astronomy, University of California - Irvine, University of California Irvine, University of California, Irvine, Physics, University of California, Los Alamos National Laboratory, Department of Physics, University of California, Physics, University of California, Irvine, Department of Physics and Astronomy, University of California, Irvine

  • Ignace Jarrige

    Brookhaven National Lab

  • Jason Hancock

    Department of Physics and Institute of Material Science, University of Connecticut, Univ of Connecticut - Storrs, Department of Physics, University of Connecticut, University of Connecticut