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 …

Experimental perspective on three-dimensional topological semimetals

BQ Lv, T Qian, H Ding - Reviews of Modern Physics, 2021 - APS
Topological semimetals (TSMs) are characterized by bulk band crossings in their electronic
structures, which are expected to give rise to gapless electronic excitations and topological …

Topological nodal line phonons: Recent advances in materials realization

X Wang, T Yang, Z Cheng, G Surucu, J Wang… - Applied Physics …, 2022 - pubs.aip.org
The topological phenomenon has been extensively studied in condensed matter physics
and has attracted much attention in many different fields. Like electrons, phonons can also …

Exotic topological phonon modes in semiconductors: Symmetry analysis and first-principles calculations for representative examples

G Ding, C Xie, J Gong, J Wang, J Bai, W Wang, D Li… - Physical Review B, 2023 - APS
Nowadays, it is recognized that semiconductors are prospective candidates for promising
thermoelectric materials and the gapless topological phonon modes can result in a high …

Second-order real nodal-line semimetal in three-dimensional graphdiyne

C Chen, XT Zeng, Z Chen, YX Zhao, XL Sheng… - Physical Review Letters, 2022 - APS
Real topological phases featuring real Chern numbers and second-order boundary modes
have been a focus of current research, but finding their material realization remains a …

Topological phonons in Cs-Te binary systems

Y Yang, J Wang, Y Liu, Y Cui, G Ding, X Wang - Physical Review B, 2023 - APS
In this paper, we used symmetry analyses and first-principles calculations to discover seven
Cs-Te binary systems that have different crystal structures and can host symmetry-enforced …

Multiple dimensions of spin-gapless semiconducting states in tetragonal

J Wang, H Yuan, Y Liu, X Wang, G Zhang - Physical Review B, 2022 - APS
Spin-gapless semiconductors (SGSs), with intrinsic magnetism, 100% spin polarization, and
zero-gap band crossing points, have attracted great scientific interest owing to their potential …

Three-nodal surface phonons in solid-state materials: Theory and material realization

C Xie, H Yuan, Y Liu, X Wang, G Zhang - Physical Review B, 2021 - APS
This year, Liu et al.[Phys. Rev. B 104, L041405 (2021) 2469-9950 10.1103/PhysRevB. 104.
L041405] proposed another class of topological phonons [TPs, ie, one-nodal surface (NS) …

Phononic Helical Nodal Lines with Protection in

TT Zhang, H Miao, Q Wang, JQ Lin, Y Cao, G Fabbris… - Physical Review Letters, 2019 - APS
While condensed matter systems host both fermionic and bosonic quasiparticles, reliably
predicting and empirically verifying topological states is only mature for Fermionic electronic …

Coexistence of symmetry-enforced phononic Dirac nodal-line net and three-nodal surfaces phonons in solid-state materials: Theory and materials realization

J Wang, H Yuan, ZM Yu, Z Zhang, X Wang - Physical Review Materials, 2021 - APS
In this study, using symmetry analysis, we reveal that symmetry-enforced three-nodal
surfaces (NSs) and Dirac nodal-line (DNL) net phonons can coexist in two candidate space …