Quartic-root higher-order topological insulators on decorated three-dimensional sonic crystals
The square-root operation provides a new scheme to create topological phases with unconventional spectrum properties. With the square-root operation, the square-root topological insulators can support paired topological boundary states in two bulk gaps, and the mechanism of square-root has been gene...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2024-02-01
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| Series: | APL Materials |
| Online Access: | http://dx.doi.org/10.1063/5.0189139 |