Roton-like acoustical dispersion relations in 3D metamaterials

Here, the authors introduce beyond-nearest-neighbour interactions as a mechanism for molding the flow of waves in acoustic metamaterials. They find that for strong third-nearest-neighbour interactions, this mechanism allows for engineering roton-like acoustical dispersion relations under ambient con...

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Autores principales: Yi Chen, Muamer Kadic, Martin Wegener
Formato: article
Lenguaje:EN
Publicado: Nature Portfolio 2021
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Acceso en línea:https://doaj.org/article/b586c50c04b44afeac07d0f96bc30b6b
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