Topological metamaterials
The topological properties of an object, associated with an integer called the topological
invariant, are global features that cannot change continuously but only through abrupt …
invariant, are global features that cannot change continuously but only through abrupt …
[HTML][HTML] Progress and perspectives on phononic crystals
Phononic crystals (PnCs) control the transport of sound and heat similar to the control of
electric currents by semiconductors and metals or light by photonic crystals. Basic and …
electric currents by semiconductors and metals or light by photonic crystals. Basic and …
[HTML][HTML] Observation of geometry-dependent skin effect in non-Hermitian phononic crystals with exceptional points
Exceptional points and skin effect, as the two distinct hallmark features unique to the non-
Hermitian physics, have each attracted enormous interests. Recent theoretical works reveal …
Hermitian physics, have each attracted enormous interests. Recent theoretical works reveal …
Topological phononic metamaterials
The concept of topological energy bands and their manifestations have been demonstrated
in condensed matter systems as a fantastic paradigm toward unprecedented physical …
in condensed matter systems as a fantastic paradigm toward unprecedented physical …
From photonic crystals to seismic metamaterials: A review via phononic crystals and acoustic metamaterials
The advancement in electromagnetic metamaterials, which commenced three decades ago,
experienced a rapid transformation into acoustic and elastic systems in the forms of …
experienced a rapid transformation into acoustic and elastic systems in the forms of …
Subwavelength elastic topological negative refraction in ternary locally resonant phononic crystals
H Huang, S Huo, J Chen - International Journal of Mechanical Sciences, 2021 - Elsevier
Negative refraction of elastic waves has attracted significant research interest due to its
potential prospects in acoustic imaging, communication, and structural health monitoring …
potential prospects in acoustic imaging, communication, and structural health monitoring …
Chiral symmetry breaking of tight-binding models in coupled acoustic-cavity systems
A finite one-dimensional Su-Schrieffer-Heeger (SSH) chain exhibits “zero-energy” boundary-
mode solutions that are protected by chiral symmetry. The breaking of chiral symmetry leads …
mode solutions that are protected by chiral symmetry. The breaking of chiral symmetry leads …
Multichannel topological transport in an acoustic valley Hall insulator
Z Wang, Y Yang, H Li, H Jia, J Luo, J Huang, Z Wang… - Physical Review …, 2021 - APS
Valley interface states, resulting in acoustic valley Hall topological insulators, have recently
become a hot topic in the study of acoustic systems. On the basis of structural diversity and …
become a hot topic in the study of acoustic systems. On the basis of structural diversity and …
[HTML][HTML] Topologically protected zero refraction of elastic waves in pseudospin-Hall phononic crystals
H Huang, Z Tan, S Huo, L Feng, J Chen… - Communications …, 2020 - nature.com
Zero-angle refraction of elastic waves in metamaterials has attracted attention for its
extraordinary wave collimation properties. However, earlier implementations relied on the …
extraordinary wave collimation properties. However, earlier implementations relied on the …
Robust acoustic waveguide transport in heterostructures based on acoustic topological insulators
Topological insulators have attracted great interest in recent years because of their robust
transports of topological boundary states. Usually, the topological boundary states are …
transports of topological boundary states. Usually, the topological boundary states are …