Current induced magneto-optical Kerr effect as a probe of Dirac carriers in Bi${}_{1-x}$Sb${}_x$ alloy

Ryota Miyazaki, Shunzhen Wang, Guanxiong Qu +4

We study the current-induced magneto-optical Kerr effect (MOKE) in Bi${}_{1-x}$Sb${}_x$ semi-metalic alloys. The MOKE signal is found to be the largest in pure Bi ($x=0$), exceeding th…