Engineer magnetic bi-layer honeycomb with photon-phonon interaction.

ORAL

Abstract

Phonon-photon interaction could be used to engineer magnetic system. A bilayer honeycomb lattice model is discussed. Phonon-photon interaction is utilized here to generate interlayer DM interaction which leads to a non-collinear spin groundstate and a topological phase transition. We did a group thoery analysis on the phonon modes and spectrum calculations on magnon in the system. A transition from gapped magnon phase to topological magnon nodal line phase is analyzed.

*This research was primarily supported by the NationalScience Foundation through the Center for Dynamics and Control of Materials: an NSF MRSEC under Cooperative Agreement No. DMR-1720595 and NSF Grant No.DMR-1949701.

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Presenters

  • Zexun Lin

    • University of Texas at Austin

Authors

  • Zexun Lin

    • University of Texas at Austin

  • Gregory A Fiete

    • Northeastern University

  • Bowen Ma

    • University of Texas at Austin

  • Michael Vogl

    • University of Texas at Austin
    • King Fahd University of Petroleum and Minerals

  • Martin A Rodriguez-vega

    • University of Texas at Austin
    • Los Alamos National Laboratory