Experiments on delocalization and universality in the integral Quantum Hall effect.

We report a new result on electronic transport in between two quantum Hall plateaus for an InGaAs/InP heterostructure. We find that both transport coefficients rho sub (xy) and rho sub (xx) show a characteristic power law dependence on T. Specifically, the maximum of drho sub (xy) /dB diverges like ~T sup (-k) in the range 0.1K