Probing the magnetic band gap of the ferromagnetic topological insulator MnSb${}_2$Te${}_4$

Philipp Küppers, Jannik Zenner, Stefan Wimmer +4

Mn-rich MnSb${}_2$Te${}_4$ is a ferromagnetic topological insulator with yet the highest Curie temperature T_C = 45-50 K. It exhibits a magnetic gap at the Dirac point of the topologic…