Charge redistribution between cyclotron-resolved edge states at high imbalance

Details Charge redistribution between cyclotron-resolved edge states at high imbalance Charge redistribution between cyclotron-resolved edge states at high imbalance

2004-05-11

arxiv.org/abs/cond-mat/0405227v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures, to appear in JETP Letters

Scientific paper

10.1134/1.1780561

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.

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