X-ray scattering studies of elementary excitations of α-RuCl<sub>3</sub>

ORAL

Abstract

We investigated the Kitaeuv quantum spin liquid candidate α-RuCl3 using resonant inelsatic x-ray scattering (RIXS) and inelastic x-ray scattering (IXS). Our room temperature M3-edge RIXS results revealed a spin-orbit exciton from which we extracted values for the spin-orbit coupling constant and trigonal distortion field energy which support the jeff = 1/2 nature of α-RuCl3 [1]. I will discuss the potential of M3-edge RIXS to study 4d transition metal systems and perspectives on low temperature measurements on α-RuCl3. Finally, I will present our IXS measurements of the dispersion of acoustic phonons in α-RuCl3 measured at 5 K.

[1] B.W. Lebert, S. Kim, V. Bisogni, I. Jarrige, A.M Barbour, Y.-J. Kim. Resonant inelastic x-ray scattering study of α-RuCl3: a progress report. arXiv:1908.01190

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Presenters

  • Blair Lebert

    • Physics, University of Toronto

Authors

  • Blair Lebert

    • Physics, University of Toronto

  • Subin Kim

    • Physics, University of Toronto

  • Valentina Bisogni

    • Brookhaven National Laboratory
    • NSLS-II, Brookhaven National Laboratory
    • National Synchrotron Light Source II, Brookhaven National Laboratory

  • Ignace Jarrige

    • Brookhaven National Laboratory
    • NSLS-II, Brookhaven National Laboratory
    • National Synchrotron Light Source II, Brookhaven National Laboratory

  • Andi Barbour

    • Brookhaven National Laboratory
    • NSLS-II, Brookhaven National Laboratory
    • Brookhaven National Lab.

  • Ahmet Alatas

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

  • Ayman Said

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

  • Young-June Kim

    • Physics, University of Toronto
    • Department of Physics, University of Toronto