3D 3,44T19 Type Carbon Allotrope (3,44T19‐CA): An Ideal Candidate with Phononic Stiefel–Whitney Topology and Multi–Dimensional Boundary Vibrational Modes

• Published in: physica status solidi (b) Vol. 262; no. 2
• Main Author: Li, Yang
• Format: Journal Article
• Language: English
• Published: 01.02.2025
• Subjects: 3D carbon allotropes; hinge states; real chern insulators; topological phonons

The Stiefel–Whitney (SW) insulator, which lacks spin‐orbit coupling and has space–time inversion (PT$\text{PT}$) symmetry, has attracted significant interest due to its fragile topological state and unconventional bulk‐boundary correspondence. Previously, the identification of SW insulators has been...