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 …

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 …

Realizing exceptional points of any order in the presence of symmetry

S Sayyad, FK Kunst - Physical Review Research, 2022 - APS
Exceptional points (EPs) appear as degeneracies in the spectrum of non-Hermitian matrices
at which the eigenvectors coalesce. In general, an EP of order n may find room to emerge if …

Two-nodal surface phonons in solid-state materials

C Xie, H Yuan, Y Liu, X Wang - Physical Review B, 2022 - APS
This year, researchers have been on the lookout for real materials with one-nodal, two-nodal
(two-NS), and three-nodal surface phonons. However, materials with two-NS phonons have …

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 …

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) …

Systematic investigation of emergent particles in type-III magnetic space groups

GB Liu, Z Zhang, ZM Yu, SA Yang, Y Yao - Physical Review B, 2022 - APS
In three-dimensional (3D) crystals, emergent particles arise when two or multiple bands
contact and form degeneracy (band crossing) in the Brillouin zone. Recently a complete …

Encyclopedia of emergent particles in type-IV magnetic space groups

Z Zhang, GB Liu, ZM Yu, SA Yang, Y Yao - Physical Review B, 2022 - APS
The research on emergent particles in condensed matters has been attracting tremendous
interest, and recently it is extended to magnetic systems. Here, we study the emergent …