Proximity effect between a topological insulator and a magnetic insulator with large perpendicular anisotropy

Wenmin Yang, Shuo Yang, Qinghua Zhang +9

We report that thin films of a prototype topological insulator, Bi${}_2$Se${}_3$, can be epitaxially grown onto the (0001) surface of BaFe${}_{12}$O${}_{19}$(BaM), a magnetic insulator…