Photoninduced Weyl half-metal phase and spin filter effect from topological Dirac semimetals

Xiao-Shi Li, Chen Wang, Ming-Xun Deng +5

Recently discovered Dirac semimetals (DSMs) with two Dirac nodes, such as Na${}_3$Bi and Cd${}_2$As${}_3$, are regarded to carry the ${\mathbb{Z}}_2$ topological charge in addition…