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Double-Weyl Phonons in Transition-Metal Monosilicides

Tiantian Zhang1,2, Zhida Song1,2, A Alexandradinata3

  • 1Institute of Physics, Chinese Academy of Sciences/Beijing National Laboratory for Condensed Matter Physics, Beijing 100190, China.

Physical Review Letters
|January 20, 2018
PubMed
Summary

Researchers discovered novel topological phonons in MSi materials (M=Fe, Co, Mn, Re, Ru). These crystalline materials exhibit unique spin-1 Weyl and charge-2 Dirac points, paving the way for new phononic topological materials.

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