Polarization textures in crystal supercells with topological bands
Wojciech J. Jankowski,
Daniel Bennett,
Aneesh Agarwal
et al.
Abstract:Two-dimensional materials are a highly tunable platform for studying the momentum space topology of the electronic wavefunctions and real space topology in terms of skyrmions, merons, and vortices of an order parameter. Such textures for electronic polarization can exist in moiré heterostructures. A quantum-mechanical definition of local polarization textures in insulating supercells was recently proposed. Here, we propose a definition for local polarization that is also valid for systems with topologically no… Show more
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