Three-dimensional phase diagram of disordered HgTe/CdTe quantum spin-Hall wells
Three-dimensional phase diagram of disordered HgTe/CdTe quantum spin-Hall wells
We compute the phase diagram of HgTe/CdTe quantum wells in the three-dimensional parameter space of Dirac mass, Fermi level, and disorder strength. The phase diagram reveals the quantum spin-Hall, the metallic, and the normal insulating phases. The phase boundary of the quantum spin-Hall state is shown to be strongly deformed …