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 …

Emerging theory and phenomena in thermal conduction: A selective review

J Chen, J He, D Pan, X Wang, N Yang, J Zhu… - Science China Physics …, 2022 - Springer
Recently, emerging phonon phenomena have been discovered and rapidly developed,
which have become an active hot research topic. In this review article, we present state-of …

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 …

Recipe for single-pair-Weyl-points phonons carrying the same chiral charges

G Ding, C Xie, J Bai, Z Cheng, X Wang, W Wu - Physical Review B, 2023 - APS
Recently, Wang et al.[Phys. Rev. B 106, 195129 (2022) 2469-9950 10.1103/PhysRevB.
106.195129] challenged a widely held belief in the field of Weyl physics, demonstrating that …

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 …

Edge states of topological acoustic phonons in graphene zigzag nanoribbons

ZK Ding, YJ Zeng, H Pan, N Luo, J Zeng, LM Tang… - Physical Review B, 2022 - APS
The tight-binding method is an effective way to study topological insulators. However, an
intrinsic element, ie, the acoustic sum rule (ASR) in phonon systems, has often been …

Hybrid-type nodal ring phonons and coexistence of higher-order quadratic nodal line phonons in an AgZr alloy

F Zhou, Z Zhang, H Chen, M Kuang, T Yang, X Wang - Physical Review B, 2021 - APS
Nodal line states in electronic systems can be classified based on the order of dispersion
around a band degeneracy (ie, linear, quadratic, or cubic) and the various slopes of crossing …

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) …

Topological phononic nodal hexahedron net and nodal links in the high-pressure phase of the semiconductor CuCl

QB Liu, HH Fu, R Wu - Physical Review B, 2021 - APS
By using symmetry analysis and first-principles calculations, we propose that the simple
cubic structure of copper chloride (CuCl) in high-pressure phase can be worked as a three …

Hourglass phonons jointly protected by symmorphic and nonsymmorphic symmetries

B Zheng, F Zhan, X Wu, R Wang, J Fan - Physical Review B, 2021 - APS
Hourglass dispersion is generally believed to be solely protected by nonsymmorphic
symmetries, because these symmetries can introduce high-dimensional projective …