156 citations · 643 across the 8 of their papers we have counts for
8 papers
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…
Rational design principles of quantum anomalous Hall effect from superlattice-like magnetic topological insulators
Hongyi Sun, Bowen Xia, Zhongjia Chen +7
As one of paradigmatic phenomena in condensed matter physics, the quantum anomalous Hall effect (QAHE) in stoichiometric Chern insulators has drawn great interest for years. By usi…
Large Band Gap Quantum Anomalous Hall Phase in Hexagonal Organometallic Frameworks
Yuanjun Jin, Zhongjia Chen, Bowen Xia +3
The nontrivial band gap plays a critical role in quantum anomalous Hall (QAH) insulators. In this work, we propose that the intrinsic QAH phase with sizable band gaps up to 367 meV…