Topological phononics: from fundamental models to real materials

Y Liu, X Chen, Y Xu - Advanced Functional Materials, 2020 - Wiley Online Library
Effective manipulation of phonons is crucial to modern energy‐information science and
technologies but limited by the charge neutral and spinless nature of phonons. Recently …

Topological phononic materials: Computation and data

XQ Chen, J Liu, J Li - The Innovation, 2021 - cell.com
Considering the current volume of materials data, it is impossible to investigate each
compound by trial-and-error experiments involving labor-intensive efforts. The scientists in …

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 …

Charge-two Weyl phonons with type-III dispersion

G Ding, F Zhou, Z Zhang, ZM Yu, X Wang - Physical Review B, 2022 - APS
In recent years, charge-two Weyl point phonons (WPPs) have attracted increasing attention.
Charge-two WPPs not only provide a new platform for realizing phonon-based …

Computation and data driven discovery of topological phononic materials

J Li, J Liu, SA Baronett, M Liu, L Wang, R Li… - Nature …, 2021 - nature.com
The discovery of topological quantum states marks a new chapter in both condensed matter
physics and materials sciences. By analogy to spin electronic system, topological concepts …

Three-dimensional Dirac phonons with inversion symmetry

ZJ Chen, R Wang, BW Xia, BB Zheng, YJ Jin… - Physical Review Letters, 2021 - APS
Dirac semimetals associated with bulk Dirac fermions are well known in topological
electronic systems. In sharp contrast, three-dimensional (3D) Dirac phonons in crystalline …

Phonons as a platform for non-Abelian braiding and its manifestation in layered silicates

B Peng, A Bouhon, B Monserrat, RJ Slager - Nature Communications, 2022 - nature.com
Topological phases of matter have revolutionised the fundamental understanding of band
theory and hold great promise for next-generation technologies such as low-power …

Symmetry-protected ideal type-II Weyl phonons in CdTe

BW Xia, R Wang, ZJ Chen, YJ Zhao, H Xu - Physical review letters, 2019 - APS
Nontrivial low-energy excitations of crystalline solids have insightfully strengthened
understanding of elementary particles in quantum field theory. Usually, topological …

Topological phonons in graphene

J Li, L Wang, J Liu, R Li, Z Zhang, XQ Chen - Physical Review B, 2020 - APS
By means of first-principles calculations and a modeling analysis, we have predicted that
traditional two-dimensional graphene hosts four types of topological phononic Dirac points …

Symmetry-protected topological triangular Weyl complex

R Wang, BW Xia, ZJ Chen, BB Zheng, YJ Zhao, H Xu - Physical Review Letters, 2020 - APS
Weyl points are often believed to appear in pairs with opposite chirality. In this work, we
show by first-principles calculations and symmetry analysis that single Weyl phonons with …