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Journal Article

Catalog of topological phonon materials


G. Vergniory,  M.
Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Xu, Y., G. Vergniory, M., Ma, D.-S., Mañes, J. L., Song, Z.-D., Bernevig, B. A., et al. (2024). Catalog of topological phonon materials. Science, 384(6696): eadf8458, pp. 1 of 7-7 of 7. doi:10.1126/science.adf8458.

Cite as: https://hdl.handle.net/21.11116/0000-000F-5AB1-4
Phonons play a crucial role in many properties of solid-state systems, and it is expected that topological phonons may lead to rich and unconventional physics. On the basis of the existing phonon materials databases, we have compiled a catalog of topological phonon bands for more than 10,000 three-dimensional crystalline materials. Using topological quantum chemistry, we calculated the band representations, compatibility relations, and band topologies of each isolated set of phonon bands for the materials in the phonon databases. Additionally, we calculated the real-space invariants for all the topologically trivial bands and classified them as atomic or obstructed atomic bands. We have selected more than 1000 "ideal" nontrivial phonon materials to motivate future experiments. The datasets were used to build the Topological Phonon Database.