Quantization of the Hall conductivity well beyond the adiabatic limit in pulsed magnetic fields

V. T. Dolgopolov, A. A. Shashkin, J. M. Broto +2

We measure the Hall conductivity, ${\sigma }_{xy}$, on a Corbino geometry sample of a high-mobility AlGaAs/GaAs heterostructure in a pulsed magnetic field. At a bath temperature about 80 m…