ABSTRACT
In the ideal case without scattering and without disorder discrete Landau levels would be expected. With increasing scattering the Landau levels effectively broaden, and the relative population difference decreases. With the relative population difference the exchange energy between the electrons and accordingly the effective g-factor are reduced. Therefore the magnetic field range for the spin-split Landau level is reduced and, together with only a slight change of the slope between the plateaus, the width of the spin-split plateau decreased. Thus its width is linked directly with the broadening of the effective Landau levels.
