ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2024
Parity-Frequency-Space Elastic Spin Control of Wave Routing in Topological Phononic Circuits.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2024. 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
- Far-field phonon coupling in valley metamaterial circuits.Nature communications · 2025Article
- Realization of Spin-locked Acoustic Helical Landau Levels in both Hexagonal and Square Lattices.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- Quantum Valley Hall Effect-Based Coupler with Continuously Tunable Transmission for Topological Information Communication.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
- An On-Chip Second-Order Elastic Topological Insulator for Demultiplexing Out-of-Plane and In-Plane Corner Modes.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 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
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Authors and funding
10 authors.
Funding
Abstract
Topological phononic cavities, such as ring resonators with topological whispering gallery modes (TWGMs), offer a flexible platform for the realization of robust phononic circuits. However, the chiral mechanism governing TWGMs and their selective routing in integrated phononic circuits remain unclear. This work reveals, both experimentally and theoretically, that at a phononic topological interface, the elastic spin texture is intricately linked to, and can be explained through a knowledge of, the phonon eigenmodes inside each unit cell. Furthermore, for paired, counterpropagating TWGMs based on such interfaces in a waveguide resonator, this study demonstrates that the elastic spin exhibits locking at discrete frequencies. Backed up by theory, experiments on kHz TWGMs in thin honeycomb-lattice aluminum plates bored with clover-leaf shaped holes show that together with this spin-texture related angular-momentum locking mechanism at a single topological interface, there are triplicate parity-frequency-space selective wave routing mechanisms. In the future, these mechanisms can be harnessed for the versatile manipulation of elastic-spin based routing in phononic topological insulators.
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