Sr${}_{0.9}$K${}_{0.1}$Zn${}_{1.8}$Mn${}_{0.2}$As${}_2$: a ferromagnetic semiconductor with colossal magnetoresistance

Xiaojun Yang, Qian Chen, Yupeng Li +6

A bulk diluted magnetic semiconductor (Sr,K)(Zn,Mn)${}_2$As${}_2$ was synthesized with decoupled charge and spin doping. It has a hexagonal CaAl${}_2$Si${}_2$-type structure with t…