Carrier dependent ferromagnetism in chromium doped topological insulator $C{r}_{0.2}B{i}_{x}S{b}_{1.8-x}T{e}_3$

Bin Li, Qingyan Fan, Fuhao Ji +3

Carrier-independent ferromagnetism of chromium doped topological insulator $B{i}_{x}S{b}_{2-x}T{e}_3$ thin films,which cannot be explained by current theory of dilute magnetic semiconducto…