Bulletin of the American Physical Society
APS March Meeting 2021
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session J38: Magnetism Quantum Theory and Computation Studies
3:00 PM–6:00 PM,
Tuesday, March 16, 2021
Sponsoring Units: GMAG DMP FIAP
Chair: Hua Chen, Colorado State University
Abstract: J38.00001 : Robust edge states in magnetic-texture based metamaterials
3:00 PM–3:36 PM
Through analytical and numerical calculations, we predict (higher-order) topological insulator states in magnetic-texture (e.g., skyrmion and vortex) based metamaterials, which manifests robust edge and/or corner states at device boundaries and is characterized by the quantized Chern number and the ZN Berry phase. Note that both fabricating the spin-texture metamaterials of interest and detecting the spatially localized edge modes are already within the reach of current technology. Our findings open up a promising route to realizing (higher-order) topological insulators in magnetic systems and to achieving robust spintronic memories, imaging, and computing.
References: PRApplied 13, 064058 (2020); PRB 101, 184404 (2020); PRL 124, 217204 (2020); PR Research 2, 022028(R) (2020); Nano. Lett. 20, 7566 (2020); PRB 98, 180407(R) (2018); npj Comput. Mater. 5, 107 (2019).
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