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Magneto-oscillations in the Thermal Conductivity of Kitaev Magnet RuCl3

ORAL

Abstract

RuCl3 has been the subject of much intrigue and controversy due to it’s status as a possible realization of Kitaev’s honeycomb model and it’s exotic physics. Much of this attention has focused on the half-integer quantized thermal hall conductivity reported by Kasahara et al [1]. Here, we report a striking new observation in the system’s thermal transport physics. When cooled below 4K, RuCl3 exhibits strong magneto-oscillations in its longitudinal thermal conductivity. Additionally, the thermal conductivity follows a butterfly-shaped hysteresis loop that also displays oscillations. We discuss possible explanations for this surprising effect and provide updates on our attempts to reproduce the half-integer quantized thermal hall conductivity reported by Kasahara et al.

[1] Kasahara et al. Nature 559, 227-231 (2018).

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Presenters

  • Peter Czajka

    Princeton University, Physics, Princeton University

Authors

  • Peter Czajka

    Princeton University, Physics, Princeton University

  • Tong Gao

    Princeton University, Physics, Princeton University

  • Jingjing Lin

    Princeton University

  • Max Hirschberger

    RIKEN, RIKEN Center for Emergent Matter Science

  • Arnab Banerjee

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

  • Paula Lampen-Kelley

    Oak Ridge National Laboratory, Material Science and Technology Division, Oak Ridge National Lab

  • Jiaqiang Yan

    Materials Science and Engineering, The University of Tennessee, Oak Ridge National Lab, Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge National Laboratory, Materials Science and Technology Division, Oak Ridge National Lab, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

  • 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

  • Stephen E Nagler

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

  • N. Phuan Ong

    Princeton University, Physics, Princeton University