ArticleNature communications2021
Observation of elastic spin with chiral meta-sources.
Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Revealing intrinsic 3D spin angular momentum of evanescent acoustic phonons on a single-crystal surface using ultrafast optoacoustics.Nature communications · 2026Article
- Broadband topological transitions in twisted elastodynamic metasurfaces.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Backscattering-free edge states below all bands in two-dimensional auxetic media.Nature communications · 2025Article
- Chirality-induced phonon spin selectivity by elastic spin-orbit interaction.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Parity-Frequency-Space Elastic Spin Control of Wave Routing in Topological Phononic Circuits.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- Perfect circular polarization of elastic waves in solid media.Nature communications · 2024Article
- Observation of phononic skyrmions based on hybrid spin of elastic waves.Science advances · 2023Article
Corrections and comments
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Authors and funding
9 authors.
Funding
Abstract
Directional routing of one-way classical wave has raised tremendous interests about spin-related phenomena. This sparks specifically the elastic wave study of pseudo-spin in meta-structures to perform robust manipulations. Unlike pseudo-spin in mathematics, the intrinsic spin angular momentum of elastic wave is predicted quite recently which exhibits selective excitation of unidirectional propagation even in conventional solids. However, due to the challenge of building up chiral elastic sources, the experimental observation of intrinsic spin of elastic wave is still missing. Here, we successfully measure the elastic spin in Rayleigh and Lamb modes by adopting elaborately designed chiral meta-sources that excite locally rotating displacement polarization. We observe the unidirectional routing of chiral elastic waves, characterize the different elastic spins along different directions, and demonstrate the spin-momentum locking in broad frequency ranges. We also find the selective one-way Lamb wave carries opposite elastic spin on two plate surfaces in additional to the source chirality.
Identifiers
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Registered trials
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