# 5. Scaling theory of the Quantum Hall effect

#### Presentations » 5. Scaling theory of the Quantum Hall effect

**Taken by Michał Białończyk**

The Quantum Hall effect manifests itself by peaks (in the longitudinal direction) and plateaus (in the transverse direction) of the conductance of a 2d electron gas exposed to a perpendicular magnetic field. The experimental results have been successfully analyzed using a scaling theory which goes beyond a one-parameter scaling hypothesis. The attached article is a review article covering many topics. I propose to concentrate on the experimental results and the scaling theory, that is mainly sections 2, 4 and 5.

The precise analysis of a specific model is the subject of presentation 6.