The Quantum Hall Effect and Inter-edge State Tunneling Within a Barrier
Condensed Matter
2009-10-28 v2
Abstract
We have introduced a controllable nano-scale incursion into a potential barrier imposed across a two-dimensional electron gas, and report on the phenomena that we observe as the incursion develops. In the quantum Hall regime, the conductance of this system displays quantized plateaus, broad minima and oscillations. We explain these features and their evolution with electrostatic potential geometry and magnetic field as a progression of current patterns formed by tunneling between edge and localized states within the barrier.
Cite
@article{arxiv.cond-mat/9502031,
title = {The Quantum Hall Effect and Inter-edge State Tunneling Within a Barrier},
author = {B. L. Johnson and A. S. Sachrajda and G. Kirczenow and Y. Feng and R. P. Taylor and L. Henning and J. Wang and P. Zawadzki and P. T. Coleridge},
journal= {arXiv preprint arXiv:cond-mat/9502031},
year = {2009}
}
Comments
RevTeX + 4 postscript figures. Self-unpacking uuencoded files. Unpacking instructions are at the beginning of the files. To appear in Physical Review B