Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2001-06-07
Phys. Rev. B 63, 245327 (2001)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
15 pages, 3 figures included
Scientific paper
10.1103/PhysRevB.63.245327
An approach to experimentally exploring electronic correlation functions in mesoscopic regimes is proposed. The idea is to monitor the mesoscopic fluctuations of a tunneling current flowing between the two layers of a semiconductor double-quantum-well structure. From the dependence of these fluctuations on external parameters, such as in-plane or perpendicular magnetic fields, external bias voltages, etc., the temporal and spatial dependence of various prominent correlation functions of mesoscopic physics can be determined. Due to the absence of spatially localized external probes, the method provides a way to explore the interplay of interaction and localization effects in two-dimensional systems within a relatively unperturbed environment. We describe the theoretical background of the approach and quantitatively discuss the behavior of the current fluctuations in diffusive and ergodic regimes. The influence of both various interaction mechanisms and localization effects on the current is discussed. Finally a proposal is made on how, at least in principle, the method may be used to experimentally determine the relevant critical exponents of localization-delocalization transitions.
Altland Alexander
Janssen Martin
Meyer Julia S.
No associations
LandOfFree
Magnetotunneling spectroscopy of mesoscopic correlations in two-dimensional electron systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Magnetotunneling spectroscopy of mesoscopic correlations in two-dimensional electron systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetotunneling spectroscopy of mesoscopic correlations in two-dimensional electron systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-459226