156 citations · 643 across the 8 of their papers we have counts for
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Negative Interatomic Spring Constant Manifested by Topological Phonon Flat Band
Bowen Xia, Hang Liu, Feng Liu
Phonons as bosons are different from electrons as fermions. Unlike interatomic electron hopping that can be either positive or negative and further tuned by spin-orbit coupling, in…
Three-dimensional Dirac Phonons with Inversion Symmetry
Zhongjia Chen, Rui Wang, Bowen Xia +4
Dirac semimetals associated with bulk Dirac fermions are well-known in topological electronic systems. In sharp contrast, three-dimensional (3D) Dirac phonons in crystalline solids…
Symmetry-Protected Ideal Type-II Weyl Phonons in CdTe
B. W. Xia, R. Wang, Z. J. Chen +2
Nontrivial low-energy excitations of crystalline solids have insightfully strengthened understanding of elementary particles in quantum field theory. Usually, topological quasipart…
Symmetry-Protected Topological Triangular Weyl Complex
R. Wang, B. W. Xia, Z. J. Chen +3
Weyl points are often believed to appear in pairs with opposite chirality. In this work, we show by first-principles calculations and symmetry analysis that single Weyl phonons wit…
Ideal Intersecting Nodal Ring Phonons in a Body-Centered Cubic C
Y. J. Jin, Z. J. Chen, B. W. Xia +3
Carbon, a basic versatile element in our universe, exhibits rich varieties of allotropic phases, most of which possess promising nontrivial topological fermions. In this work, we i…