Dynamics of electronic transport in the integer quantum Hall regime

We examine different aspects of the dynamics of electronic transport in the integer quantum Hall effect. In the first part the quantum Hll plateau transition is studied. We present experimental results which confirm a universal scaling behaviour near the critical point of this quantum phase transition between adjacent quantum Hall phases. The second part focuses on the transport properties of quantum Hall edge channels. We use selective detection of individual channels to proof the existence of an inter edge magneto plasmon mode. Furthermore we study the equilibration between spin polarised edge channels at very high magnetic fields.