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Topological acoustic triple point
Acoustic phonon is a classic example of triple degeneracy point in band structure. This triple point always appears in phonon spectrum because of the Nambu–Goldstone theorem. Here, we show that this triple point can carry a topological charge [Formula: see text] that is a property of three-band syst...
| Autores principales: | , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
Nature Publishing Group UK
2021
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8608830/ https://www.ncbi.nlm.nih.gov/pubmed/34811349 http://dx.doi.org/10.1038/s41467-021-27158-y |