| Autor: |
Hayato Takeda, Ryoya Minami, Osamu Matsuda, Oliver B. Wright, Motonobu Tomoda |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Applied Physics Express, Vol 17, Iss 1, p 017004 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1882-0786 |
| DOI: |
10.35848/1882-0786/ad157f |
| Popis: |
We construct a two-dimensional mechanical wave machine based on a hexagonal lattice to investigate low-frequency flexural plate waves whose propagation mimicks a topological quantum valley Hall system. We thereby demonstrate “mechanical graphene” by extension of the one-dimensional Shive wave machine to two dimensions. Imaging experiments, backed up by simulations, reveal the presence of boundary modes along a topological interface. This work provides an alternative route for the investigation of topological phononic crystals, and should lead to new insights into the design and observation of artificial phononic structures. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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