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.

*U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Award No. DE-SC0016481

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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