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cond-mat.mtrl-sci2023
Single pair of charge-two high-fold fermions with type-II van Hove singularities on the surface of ultralight chiral crystals
Xiaoliang Xiao, Yuanjun Jin, Da-Shuai Ma +4
The realization of single-pair chiral fermions in Weyl systems remains challenging in topology physics, especially for the systems with higher chiral charges . In this work, bas…
cond-mat.mtrl-sci2021
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…