Surface state mediated ferromagnetism in Mn${}_{0.14}$Bi${}_{1.86}$Te${}_3$ thin films

Ryan Van Haren, Toyanath Joshi, David Lederman

A spontaneous ferromagnetic moment can be induced in Bi${}_2$Te${}_3$ thin films below a temperature T $\approx$ 16 K by the introduction of Mn dopants. We demonstrate that films g…