Charge redistribution between cyclotron-resolved edge states at high imbalance
arXiv:cond-mat/0405227 · doi:10.1134/1.1780561
Abstract
We use a quasi-Corbino sample geometry with independent contacts to different edge states in the quantum Hall effect regime to investigate a charge redistribution between cyclotron-split edge states at high imbalance. We also modify Buttiker formalism by introducing local transport characteristics in it and use this modified Buttiker picture to describe the experimental results. We find that charge transfer between cyclotron-split edge states at high imbalance can be described by a single parameter, which is a transferred between edge states portion of the available for transfer part of the electrochemical potential imbalance. This parameter is found to be independent of the particular sample characteristics, describing fundamental properties of the inter-edge-state scattering. From the experiment we obtain it in the dependence on the voltage imbalance between edge states and propose a qualitative explanation to the experimental findings.
5 pages, 4 figures, to appear in JETP Letters
References in corpus (4)
- Dynamic nuclear polarization at the edge of a two-dimensional electron gas
- Separately contacted edge states: A new spectroscopic tool for the investigation of the quantum Hall effect
- Observation of two relaxation mechanisms in transport between spin split edge states at high imbalance
- Manifestation of the bulk phase transition in the edge energy spectrum in a two dimensional bilayer electron system