Ontology highlight
ABSTRACT:
SUBMITTER: Xie B
PROVIDER: S-EPMC7755923 | biostudies-literature | 2020 Dec
REPOSITORIES: biostudies-literature
Light, science & applications 20201222 1
A four-fold-degenerate three-dimensional (3D) Dirac point, represents a degenerate pair of Weyl points carrying opposite chiralities. Moreover, 3D Dirac crystals have shown many exotic features different from those of Weyl crystals. How these features evolve from 3D Dirac to Weyl crystals is important in research on 3D topological matter. Here, we realized a pair of 3D acoustic Dirac points from band inversion in a hexagonal sonic crystal and observed the surface states and helical interface sta ...[more]