Demonstration of a quantized acoustic octupole topological insulator
Although multipole topological insulators have been theoretically described and experimentally observed in 2D, third-order topological insulators in 3D have not been observed yet. Here, the authors realize for the first time a quantized octupole 3D topological state in an acoustic metamaterial.
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Publishing Group
2020-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-020-15705-y |