Broadband strong optical dichroism in topological Dirac semimetals with Fermi velocity anisotropy

J. Lim, K. J. A. Ooi, C. Zhang +2

Prototypical three-dimensional (3D) topological Dirac semimetals (DSMs), such as Cd${}_3$As${}_2$ and Na${}_3$Bi, contain electrons that obey a linear momentum-energy dispersion with dif…