Characteristics of the intermediate-field ordered phase of alpha- RuCl3 revealed by magnetic diffraction

ORAL

Abstract

There has been great interest in alpha-RuCl3 as a material that manifests Kitaev terms in the spin Hamiltonian and a possible field-induced quantum spin liquid (QSL) phase by 8 T [1]. Bulk Measurements show that in the in-plane magnetic field causes a transition to an intermediate ordered phase around 6 Tesla [1, 2], preceding the total suppression of magnetic order around 7.3 T. Here we use time-of-flight neutron diffraction to elucidate the nature of intermediate phase and its magnetic order. Our results provide new insights into the dimensionality of the magnetic order and the effective spin-Hamiltonian of the material.
[1] A. Banerjee, P. Kelley, C. Balz et al., npj-Quantum Materials 3, 8 (2018).
[2] P. Kelley, L. Janssen, E. Andrade, S. Rachel, J.-Q. Yan, C. Balz, D. Mandrus, S. Nagler, M. Vojta, arxiv:1807.06192 (2018).

*The work performed at ORNL used the Spallation Neutron Source, is sponsored in part by the DOE Office of Science, Basic Energy Sciences, Division of Scientific User Facilities.

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Presenters

  • Arnab Banerjee

    • Oak Ridge National Laboratory
    • Oak Ridge National Lab

Authors

  • Arnab Banerjee

    • Oak Ridge National Laboratory
    • Oak Ridge National Lab

  • Christian Balz

    • Oak Ridge National Laboratory (USA)
    • Oak Ridge National Laboratory

  • Paige Lampen-Kelley

    • Material Science and Engineering, University of Tennessee
    • Materials Science and Engineering, University of Tennessee
    • Materials Science and Technology Division, Oak Ridge National Laboratory

  • Jiaqiang Yan

    • Oak Ridge National Laboratory (USA)
    • Materials Science and Technology Division, Oak Ridge National Laboratory
    • Oak Ridge National Laboratory
    • Materials Science and Technology, Materials Science and Technology
    • Oak Ridge National Lab
    • Materials Science and Engineering, The University of Tennessee

  • David George Mandrus

    • Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, USA
    • University of Tennessee-Knoxville
    • Oak Ridge National Lab
    • Department of Materials Science and Engineering, University of Tennessee
    • University of Tennessee (Knoxville, USA)
    • Department of Materials Science and Engineering, University of Tennessee Knoxville
    • Department of Material Science & Engineering, University of Tennessee
    • Material Science and Engineering, University of Tennessee
    • Materials Science and Technology, Materials Science and Technology
    • University of Tennessee, Knoxville
    • Department of Materials Science and Engineering, The University of Tennessee
    • Materials Science and Engineering, The University of Tennessee
    • Oak Ridge National Laboratory
    • Department of Material Science and Engineering, University of Tennessee

  • Yaohua Liu

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

  • Stephen Nagler

    • Oak Ridge National Laboratory (USA)
    • Oak Ridge National Laboratory
    • Oak Ridge National Lab
    • Neutron Scattering Division, Oak Ridge National Laboratory