Topological acoustics

H Xue, Y Yang, B Zhang - Nature Reviews Materials, 2022 - nature.com
Topological acoustics is an emerging field that lies at the intersection of condensed matter
physics, mechanical structural design and acoustics engineering. It explores the design and …

Responsive materials architected in space and time

X **a, CM Spadaccini, JR Greer - Nature Reviews Materials, 2022 - nature.com
Rationally designed architected materials have attained previously untapped territories in
materials property space. The properties and behaviours of architected materials need not …

Exceptional topology of non-Hermitian systems

EJ Bergholtz, JC Budich, FK Kunst - Reviews of Modern Physics, 2021 - APS
The current understanding of the role of topology in non-Hermitian (NH) systems and its far-
reaching physical consequences observable in a range of dissipative settings are reviewed …

Topological metamaterials

X Ni, S Yves, A Krasnok, A Alu - Chemical Reviews, 2023 - ACS Publications
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 …

Topological phases in acoustic and mechanical systems

G Ma, M **ao, CT Chan - Nature Reviews Physics, 2019 - nature.com
The study of classical wave physics has been reinvigorated by incorporating the concept of
the geometric phase, which has its roots in optics, and topological notions that were …

Gate-tunable negative refraction of mid-infrared polaritons

H Hu, N Chen, H Teng, R Yu, M Xue, K Chen, Y **ao… - Science, 2023 - science.org
Negative refraction provides a platform to manipulate mid-infrared and terahertz radiation for
molecular sensing and thermal emission applications. However, its implementation based …

Second-order topology and multidimensional topological transitions in sonic crystals

X Zhang, HX Wang, ZK Lin, Y Tian, B **e, MH Lu… - Nature Physics, 2019 - nature.com
Topological insulators with unique edge states have revolutionized the understanding of
solid-state materials. Recently, higher-order topological insulators (HOTIs), which host both …

Weyl, Dirac and high-fold chiral fermions in topological quantum matter

MZ Hasan, G Chang, I Belopolski, G Bian… - Nature Reviews …, 2021 - nature.com
Quantum materials hosting Weyl fermions have opened a new era of research in condensed
matter physics. First proposed in 1929 in the context of particle physics, Weyl fermions have …

Direct observation of topological phonons in graphene

J Li, J Li, J Tang, Z Tao, S Xue, J Liu, H Peng… - Physical Review Letters, 2023 - APS
Phonons, as the most fundamental emergent bosons in condensed matter systems, play an
essential role in the thermal, mechanical, and electronic properties of crystalline materials …

Engineering van der Waals materials for advanced metaphotonics

H Lin, Z Zhang, H Zhang, KT Lin, X Wen… - Chemical …, 2022 - ACS Publications
The outstanding chemical and physical properties of 2D materials, together with their
atomically thin nature, make them ideal candidates for metaphotonic device integration and …