Double-Weyl Phonons in Transition-Metal Monosilicides
Double-Weyl Phonons in Transition-Metal Monosilicides
Topological states of electrons and photons have attracted significant interest recently. Topological mechanical states also being actively explored, have been limited to macroscopic systems of kHz frequency. The discovery of topological phonons of atomic vibrations at THz frequency can provide a new venue for studying heat transfer, phonon scattering and …