F. Hohls, U. Zeitler, R. J. Haug
Published 2002-04-18Version 1
We analyze the conductance fluctuations observed in the quantum Hall regime for a bulk two-dimensional electron system in a Corbino geometry. We find that characteristics like the power spectral density and the temperature dependence agree well with simple expectations for universal conductance fluctuations in metals, while the observed amplitude is reduced. In addition, the dephasing length $L_\Phi \propto T^{-1/2}$, which governs the temperature dependence of the fluctuations, is surprisingly different from the scaling length $L_{sc}\propto T^{-1}$ governing the width of the quantum Hall plateau transition.
Journal: Phys. Rev. B 66, 073304 (2002)
Energetics of Quantum Antidot States in Quantum Hall Regime
Quantum Hall plateau transition in graphene with spatially correlated random hopping
Transmission coefficient through a saddle-point electrostatic potential for graphene in the quantum Hall regime
