Probing the Penetration Depth of Topological Surface States by Magnetic Impurity Scattering in V-doped Sb${}_2$Te${}_3$

Yidi Wang, Zeyu Ma, Pengcheng Chen +11

Topological insulators host Dirac surface states (SS) protected by time-reversal symmetry. Inter-surface hybridization can gap the SS and give rise to the quantum spin Hall effect…