Electron conduction within Landau level tails of medium-mobility GaAs / AlGaAs heterostructures

P. Svoboda, G. Nachtwei, C. Breitlow +2

The temperature dependence of both components of the resistivity tensor ${\varrho }_{xx}(T)$ and ${\varrho }_{xy}(T)$ has been studied at T $\ge$ 4.2 K within IQHE plateaux around filli…