First-principles calculations predict that TaSi contains fourfold spin-3/2 and sixfold fermions with Chern number +4, Weyl nodes, and topologically charged phonons with Chern numbers ±2.
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Electron and phonon topology in transition metal material TaSi
First-principles calculations predict that TaSi contains fourfold spin-3/2 and sixfold fermions with Chern number +4, Weyl nodes, and topologically charged phonons with Chern numbers ±2.