Fig. 3
a Magnetic field dependence of the Hall resistance ρxy and longitudinal resistance ρxx for holes in sample S1 with the inverted band structure. b ρxx(B) for sample S1 in a wider magnetic field range. The inset shows schematic drawing of the coexistence of helical quantum spin Hall edge states (blue and red lines) with a conventional chiral quantum Hall state (orange line). c Calculated energy dispersion and d Landau levels as a function of the magnetic field for sample S1
