Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2007-07-09
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, 2 figures
Scientific paper
10.1016/j.physe.2007.10.062
Quantum Antidot (AD) structures have remarkable properties in the integer quantum Hall regime, exhibiting Coulomb-blockade charging and the Kondo effect despite their open geometry. In some regimes a simple single-particle (SP) model suffices to describe experimental observations while in others interaction effects are clearly important, although exactly how and why interactions emerge is unclear. We present a combination of experimental data and the results of new calculations concerning SP orbital states which show how the observed suppression of the energy spacing between states can be explained through a full consideration of the AD potential, without requiring any effects due to electron interactions such as the formation of compressible regions composed of multiple states, which may occur at higher magnetic fields. A full understanding of the regimes in which these effects occur is important for the design of devices to coherently manipulate electrons in edge states using AD resonances.
Barnes Crispin H. W.
Bassett L. C.
Ford C. J. B.
Kataoka Masaya
Michael Christopher P.
No associations
LandOfFree
Geometric Suppression of Single-Particle Energy Spacings in Quantum Antidots 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 Geometric Suppression of Single-Particle Energy Spacings in Quantum Antidots, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geometric Suppression of Single-Particle Energy Spacings in Quantum Antidots will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-159129