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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] Blair W Lebert et al 2020 J. Phys.: Condens. Matter 32 144001

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Presenters

  • Blair Lebert

    Department of Physics, University of Toronto, Univ of Toronto

Authors

  • Blair Lebert

    Department of Physics, University of Toronto, Univ of Toronto

  • Subin Kim

    Univ of Toronto

  • Valentina Bisogni

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

  • Ignace Jarrige

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

  • Andi Barbour

    Brookhaven National Lab, Brookhaven National Laboratory, Brookhaven Natl Lab, National Synchrotron Light Source II, Brookhaven National Laboratory, NSLS-II, Brookhaven National Laboratory

  • Ahmet Alatas

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

  • Ayman Said

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

  • Young-June Kim

    Physics, University of Toronto, Univ of Toronto