Effect of the Dzyaloshinskii-Moriya Interactions in the Kagome Heisenberg Antiferromagnet

ORAL

Abstract

We investigate the effects of Dzyaloshinsky-Moriya (DM) interactions in the kagome antiferromagnet by means of projected entangled simplex states (PESS). Our result shows that the critical value of the DM interaction DC between the gapless spin liquid and the Neel state is D/J ≈0.040, which is only half of the magnitude proposed previously and smaller than the value of D in herbertsmithite. Our work implies that there might be other origins of the spin liquid nature in herbertsmithite.

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Presenters

  • Chih-Yuan Lee

    • Department of Physics, National Taiwan University

Authors

  • Chih-Yuan Lee

    • Department of Physics, National Taiwan University

  • Bruce Normand

    • Neutrons and Muons Research Division, Paul Scherrer Institute
    • Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute

  • Ying-Jer Kao

    • Physics, National Taiwan University
    • Department of Physics, National Taiwan University
    • Physics, Natl Taiwan Univ
    • National Taiwan University