Edge states of a Bi${}_2$Se${}_3$ nanosheet in a perpendicular magnetic field

Stan P. J. Koenis, Lucas Maisel Licerán, Henk T. C. Stoof

Conventional wisdom dictates that the conducting edge states of two-dimensional topological insulators of the Bi${}_2$Se${}_3$ family are protected by time-reversal symmetry. However,…