Topological nodal-point phononic systems

T Yang, J Wang, XP Li, X Wang, Z Cheng, W Wang… - Matter, 2024 - cell.com
Topological phonons in materials are associated with specific atomic lattice vibrations
around the terahertz frequency ranges, offering a rich platform for studying various boson …

Phononic Weyl pair, phononic Weyl complex, phononic real Chern insulator state, and phononic corner modes in 2D Kekulé-order graphene

J Li, Y Liu, J Bai, C **e, H Yuan, Z Cheng… - Applied Physics …, 2023 - pubs.aip.org
The conceptual framework of topological states has recently been extended to bosonic
systems, particularly phononic systems. In this work, we chose the recently experimentally …

New Recipe for Enhancing the Thermoelectric Performance in Topological Materials Carrying Single‐Pair Weyl Points Fermions and Phonons

G Ding, J Wang, H Wu, W Wang, D Li… - Advanced Electronic …, 2024 - Wiley Online Library
The emergence of various topological semimetal states presents a novel opportunity for
enhancing the efficiency of thermoelectric transport. This study introduces a recipe to …

Multiply charged topological phonons in

C Wang, L **, L Tian, WW Yu, X Zhang, G Liu, Y Liu - Physical Review B, 2024 - APS
Topological phonons have attracted tremendous attention in recent years, particularly when
topological phonons have nonzero topological numbers and exhibit many peculiar physical …

Catalog of maximally charged weyl points hosting nearly emanating nodal lines in phonon spectra

D Fan, X Wan, F Tang - Physical Review B, 2023 - APS
Recently, by exhausting low-energy k· p effective models around all band crossings in the
230 space groups, it was found that the maximal topological charge of the twofold …

Inhomogeneous fan-shaped surface state induced by isolated Weyl points in acoustic crystals and the associated multi-frequency sound-wave filters

ZQ Wang, XF Yang, HH Fu - Materials Today Physics, 2024 - Elsevier
The nontrivial surface states excited by isolated Weyl points (IWPs) have been scarcely
studied to date, primarily due to their circumvention from the Nielsen-Ninomiya no-go …