Crystal field splitting and spin Hamiltonian of the quantum magnet YbCl<sub>3</sub>

ORAL

Abstract

YbCl3 is a nearly ideal honeycomb lattice quantum magnet. Here we study YbCl3 with neutron scattering, magnetic susceptibility, and heat capacity measurements. We determine the crystal field Hamiltonian through simultaneous refinements of the inelastic neutron scattering and magnetization data. The ground state doublet of the crystal field Hamiltonian is well isolated and results in an effective spin-1/2 system with local easy plane anisotropy at low temperature. Cold neutron spectroscopy shows low energy spin waves peaked at 0.5 meV that can be understood through a Heisenberg model with a single nearest neighbor exchange interaction.

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Presenters

  • Andy Christianson

    • Oak Ridge National Laboratory

Authors

  • Gabriele Sala

    • Oak Ridge National Lab
    • Oak Ridge National Laboratory
    • Neutron Scattering Division, Oak Ridge National Laboratory
    • Neutron Scattering Division, Oak Ridge National Lab

  • Matthew Stone

    • Oak Ridge National Lab
    • Neutron Scattering Division, Oak Ridge National Laboratory
    • Quantum Condensed Matter Div, Oak Ridge National Lab
    • Oak Ridge National Laboratory
    • Spallation Neutron Source, Oak Ridge National Laboratory
    • Neutron Scattering Division, Oak Ridge National Lab
    • Neutron Scattering Division, OakRidge National Laboratory

  • Binod Rai

    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • Oak Ridge National Laboratory

  • Seunghwan Do

    • Oak Ridge National Lab
    • Materials Science and Technology Division, Oak Ridge National Lab
    • Oak Ridge National Laboratory
    • Materials Science and Technology Division, OakRidge National Laboratory

  • Andrew May

    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • Materials Science & Technology Division, Oak Ridge National Laboratory
    • Oak Ridge National Laboratory
    • Oak Ridge National Lab

  • David Parker

    • Materials Science & Technology Division, Oak Ridge National Laboratory
    • Oak Ridge National Lab
    • Oak Ridge National Laboratory

  • Gabor Halasz

    • Oak Ridge National Lab
    • Oak Ridge National Laboratory

  • Pontus Laurell

    • Oak Ridge
    • Oak Ridge National Laboratory
    • Center for Nanophase Materials Sciences, Oak Ridge National Laboratory

  • Satoshi Okamoto

    • Oak Ridge National Lab
    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • University of Tennessee, Knoxville
    • Oak Ridge National Laboratory

  • Nicholas Butch

    • NIST Center for Neutron Research, National Institute of Standards and Technology
    • National Institute of Standards and Technology
    • Center of Neutron Research, National Institute of Standards and Technology
    • Center for Neutron Research, National Institute of Standards and Technology
    • NIST Center for Neutron Research
    • NIST center for neutron research
    • NIST
    • NIST Center for Neutron Research, National Institute of Standards and Technology,
    • University of Maryland, College Park & NIST
    • National Institute of Standards and Technology Center for Neutron Research

  • Yongqiang Cheng

    • Oak Ridge National Lab
    • Oak Ridge National Laboratory

  • G. Ehlers

    • Oak Ridge National Laboratory

  • Vasile O Garlea

    • Oak Ridge National Laboratory
    • Quantum Condensed Matter Div, Oak Ridge National Lab
    • Oak Ridge National Lab
    • Oak Ridge National Lab, Neutron Scattering Division

  • Qiang Zhang

    • Oak Ridge National Laboratory

  • Ganesh Pokharel

    • Physics, University of Tennessee
    • Physics and Astronomy, The University of Tennessee
    • Department of Physics & Astronomy, University of Tennessee, Knoxville
    • University of Tennessee
    • Department of Physics and Astronomy, The University of Tennessee
    • University of Tennessee, Knoxville

  • Hasitha Suriya Arachchige

    • Physics and Astronomy, The University of Tennessee
    • Department of Physics & Astronomy, University of Tennessee, Knoxville
    • Department of Physics, University of Tennessee
    • University of Tennessee
    • Department of Physics and Astronomy, The University of Tennessee

  • David Mandrus

    • Physics, University of Tennessee
    • Materials Science and Engineering, The University of Tennessee
    • Department of Materials Science & Engineering, University of Tennessee, Knoxville
    • The University of Tennesse, Knoxville
    • University of Tennessee
    • Department of Physics and Astronomy, University of Tennessee
    • Oak Ridge National Laboratory
    • Department of Materials Science and Engineering, University of Tennessee Knoxville
    • Department of Materials Science and Engineering, University of Tennessee
    • University of Tennessee, Knoxville
    • Material Science and Technology Division, Oak Ridge National Laboratory
    • Material Science and Technology Division, Oak Ridge National Lab

  • Mark D Lumsden

    • Neutron Scattering Division, Oak Ridge National Lab
    • Oak Ridge National Laboratory
    • Neutron Scattering Division, OakRidge National Laboratory

  • Andy Christianson

    • Oak Ridge National Laboratory