Revisiting static and dynamic magnetic correlations in the chiralhelimagnet Cr<sub>1/3</sub>NbS<sub>2</sub>.

ORAL

Abstract

Transition metal dichalcogenides intercalated with magnetic ions can crystallize in a chiral, hexagonal space group.  Competition between Heisenberg exchange, the Dzyaloshinskii-Moriya interaction, magnetocrystalline anisotropy and an applied magnetic field in the monoaxial chiral magnet Cr1/3NbS2 lead to interesting long-period magnetic structures such as a helimagnetic and chiral soliton lattice states. We recently performed a small-angle neutron scattering experiment to characterize these states in detail. We observed higher-order peaks in our zero field data, which are unexpected for an ideal helical state with perfect sinusoidal modulation.  These signatures of anharmonic distortion could be due to undiscovered magnetocrystalline anisotropy, or metastable behavior due to disorder effects.

*This research used resources at the High Flux Isotope Reactor and Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory.

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Publication: Lazar Kish, Adam Aczel, Travis Williams, Huibo Cao, Tim Charlton, Nirmal Ghimire, Ling Li , Jacob Ruff, Michael Mcguire, Steve Kuhn, Morten Eskildsen, David Mandrus, Lisa DeBeer-Schmitt, (in preparation for Phys. Rev. Materials)

Presenters

  • Lisa M DeBeer-Schmitt

    • Oak Ridge National Lab

Authors

  • Lisa M DeBeer-Schmitt

    • Oak Ridge National Lab

  • Lazar L Kish

    • University of Illinois at Urbana-Champai

  • Adam A Aczel

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

  • Travis J Williams

    • Oak Ridge National Lab

  • Huibo Cao

    • Oak Ridge National Lab

  • Timothy R Charlton

    • Oak Ridge National Lab

  • Nirmal Ghimire

    • George Mason University
    • Quantum Science and Engineering Center, Department of Physics and Astronomy-George Mason University
    • Quantum Science and Engineering Center, Department of Physics and Astronomy - George Mason University

  • Ling Li

    • Magic Leap Inc.

  • Jacob Ruff

    • Cornell University

  • Michael A McGuire

    • Oak Ridge National Lab

  • Stephen J Kuhn

    • Indiana Univ - Bloomington

  • Morten R Eskildsen

    • University of Notre Dame

  • David G Mandrus

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