Chern dartboard insulator: sub-Brillouin zone topology and skyrmion multipoles
Abstract Topology plays a crucial role in many physical systems, leading to interesting states at the surface. A paradigmatic example is the Chern number defined in the Brillouin zone that leads to robust gapless edge states. Here we introduce the reduced Chern number, defined in the subregions of B...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-01-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-023-01502-8 |