ArticleACS nano2023
Tunable Hypersonic Bandgap Formation in Anisotropic Crystals of Dumbbell Nanoparticles.
Article in ACS nano, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed.
- Recent advances in nanoultrasonography for the diagnosis and treatment of gastrointestinal diseases.Nanomedicine (London, England) · 2025Review
- Article
- Organic nanoparticles with tunable size and rigidity by hyperbranching and cross-linking using microemulsion ATRP.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
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6 authors.
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Abstract
Phononic materials exhibit mechanical properties that alter the propagation of acoustic waves and are widely useful for metamaterials. To fabricate acoustic materials with phononic bandgaps, colloidal nanoparticles and their assemblies allow access to various crystallinities in the submicrometer scale. We fabricated anisotropic crystals with dumbbell-shaped nanoparticles via field-directed self-assembly. Brillouin light spectroscopy detected the formation of direction-dependent hypersonic phononic bandgaps that scale with the lattice parameters. In addition, the local resonances of the constituent nanoparticles enable metamaterial behavior by opening hybridization gaps in disordered structures. Unexpectedly, this bandgap frequency is robust to changes in the dumbbell aspect ratio. Overall, this study provides a structure-property relationship for designing anisotropic phononic materials with targeted phononic bandgaps.
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