Replica higher-order topology of Hofstadter butterflies in twisted bilayer graphene
Abstract The Hofstadter energy spectrum of twisted bilayer graphene (TBG) is found to have recursive higher-order topological properties. We demonstrate that higher-order topological insulator (HOTI) phases, characterized by localized corner states, occur as replicas of the original HOTIs to fulfill...
| Published in: | npj Computational Materials |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-08-01
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| Online Access: | https://doi.org/10.1038/s41524-023-01105-5 |