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

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APS March Meeting 2022

Volume 67, Number 3

Monday–Friday, March 14–18, 2022; Chicago

Session S67: Topology in Kagome Lattices

8:00 AM–11:00 AM, Thursday, March 17, 2022
Room: Hyatt Regency Hotel -Hyde Park

Sponsoring Units: DMP GMAG DCMP
Chair: Michihiro Hirata, Los Alamos National Lab; Victor Lopez Dominguez, Northwestern

Abstract: S67.00010 : Engineer magnetic bi-layer honeycomb with photon-phonon interaction.*

10:12 AM–10:24 AM

Abstract

Presenter:

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)

Martin A Rodriguez-vega
(University of Texas at Austin)

Collaboration:

N/A

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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