High-field low-energy spin dynamics in the Kitaev QSL Candidate α-RuCl<sub>3</sub>

ORAL

Abstract

The observation of the half-integer thermal quantum Hall effect in α-RuCl3 in its field-induced quantum spin liquid state, at a magnetic field of 8 T has led to the debate on the presence of a chiral spin gap in this phase. We investigate the magnetic excitations in this material using Neutron Scattering experiments to investigate if there is a spin gap and pay special attention to the overall nature of the low-energy excitations resolved in the 4D momentum, energy as a function of the magnetic field to 13.5 T

*This work is also supported by the Quantum Science Center (QSC), a National Quantum Information Science Research Center of the U.S. Department of Energy (DOE) led by Oak Ridge National Laboratory (ORNL)

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Presenters

  • Kiranmayi Dixit

    • Purdue University

Authors

  • Kiranmayi Dixit

    • Purdue University

  • Colin Sarkis

    • Neutron Scattering Division, Oak Ridge National Lab, Oak Ridge, Tennessee 37831, USA
    • Oak Ridge National Lab

  • Barry Winn

    • Oak Ridge National Laboratory
    • Oak Ridge Nation Lab

  • David G Mandrus

    • University of Tennessee
    • Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN, 37916, USA

  • Stephen E Nagler

    • Neutron Scattering Division, Oak Ridge National Lab, Oak Ridge, Tennessee 37831, USA
    • Oak Ridge National Lab

  • Christian Balz

    • Rutherford Appleton Labs
    • Oak Ridge National Lab

  • Paula Lampen-Kelly

    • University of Tennessee
    • Oak Ridge National Lab

  • Arnab Banerjee

    • Purdue University