Symmetry-Protected Ideal Type-II Weyl Phonons in CdTe
Symmetry-Protected Ideal Type-II Weyl Phonons in CdTe
Nontrivial low-energy excitations of crystalline solids have insightfully strengthened understanding of elementary particles in quantum field theory. Usually, topological quasiparticles are mainly focused on fermions in topological semimetals. We alternatively show by first-principles calculations and symmetry analysis that ideal type-II Weyl phonons are present in zinc-blende cadmium telluride, a well-known …