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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