Observation of Topological -Orbital Disclination States in Non-Euclidean Acoustic Metamaterials
Disclinations—topological defects ubiquitously existing in various materials—can reveal the
intrinsic band topology of the hosting material through the bulk-disclination correspondence …
intrinsic band topology of the hosting material through the bulk-disclination correspondence …
Material vs. structure: Topological origins of band-gap truncation resonances in periodic structures
The distinction and correlation between intrinsic and boundary-induced properties represent
a core problem in material physics. While resonant modes do not exist within band gaps in …
a core problem in material physics. While resonant modes do not exist within band gaps in …
Tunable topological edge modes in Su–Schrieffer–Heeger arrays
A potential weakness of topological waveguides is that they act on a fixed narrow band of
frequencies. However, by 3D printing samples from a photo-responsive polymer, we can …
frequencies. However, by 3D printing samples from a photo-responsive polymer, we can …
Simultaneous acoustic and vibration isolation metamaterials based on triply periodic minimal surface
H Xiao, H Dai, N Dai, L Zhou - Thin-Walled Structures, 2025 - Elsevier
Metamaterials have attracted widespread attention because they exhibit novel physical
behaviors not found in nature. In recent years, due to the excellent properties of triply …
behaviors not found in nature. In recent years, due to the excellent properties of triply …
Measurement of fractional charge in elastic plates with disclinations
In topological crystalline insulators, the presence of crystalline symmetries can lead to a
filling anomaly—a mismatch in electron counts that causes quantized fractional charges at …
filling anomaly—a mismatch in electron counts that causes quantized fractional charges at …
Quasinormal mode expansion in thin elastic plates
Elastic wave manipulation using large arrays of resonators is driving the need for advanced
simulation and optimization methods. To address this we introduce and explore a robust …
simulation and optimization methods. To address this we introduce and explore a robust …
A Bloch analysis extended to weakly disordered periodic media
Y Li, R Cottereau, B Tie - Journal of Sound and Vibration, 2024 - Elsevier
This paper develops an asymptotic method to predict the dispersion curves of a weakly
disordered medium. The disordered coefficients of the original acoustic equation are related …
disordered medium. The disordered coefficients of the original acoustic equation are related …
Probing fragile topology with a screw dislocation
Fragile topology, akin to twisted bilayer graphene and the exotic phases therein, is a notable
topological class with intriguing properties. However, due to its unique nature and the lack of …
topological class with intriguing properties. However, due to its unique nature and the lack of …
Platonic quasi-normal modes expansion
Elastic wave manipulation using large arrays of resonators is driving the need for advanced
simulation and optimization methods. To address this we introduce and explore a robust …
simulation and optimization methods. To address this we introduce and explore a robust …
Closed Form Solutions for Wave Propagation in Hexagonal Diatomic Non-Local Mass-Spring Systems
Periodic mass-spring lattices are commonly used to investigate and exemplify the
propagation of waves in elastic systems, including wave localisation and topological …
propagation of waves in elastic systems, including wave localisation and topological …