Figure 2
From: Trigonal multivalent polonium monolayers with intrinsic quantum spin Hall effects
Orbital-resolved band structures of the poloniumene without (a) and with (b) SOC, where the calculated irreducible representations of the energy bands around the EF are also displayed. The label + ( −) denotes the even (odd) parity. (c) Helical edge states of the poloniumene. (d) Schematic diagram of the energy level evolution for the \(p_{x,y}\) and \(p_{z}\) orbitals around the Γ point.
