Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2006-07-18
Phys. Stat. Sol. (c) 3, 4364-4367 (2006)
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
4 pages, 1 figure (conference paper -- PASPS IV); v2: minor typos corrected
Scientific paper
Motivated by recent experiments [Zhang \textit{et al.}, Phys. Rev. Lett. \textbf{95}, 216801 (2005) and Ellenberger \textit{et al.}, cond-mat/0602271] reporting novel ringlike structures in the density--magnetic-field ($n_{2D}$\emph{--B}) diagrams of the longitudinal resistivity $\rho_{xx}$ of quantum wells with two subbands, we investigate theoretically here the magneto-transport properties of these quantum-Hall systems. We determine $\rho_{xx}$ via both the Hartree and the Kohn-Sham self-consistent schemes plus the Kubo formula. While the Hartree calculation yields diamond-shaped structures in the $n_{2D}$\emph{--B} diagram, the calculation including exchange and correlation effects (Kohn-Sham) more closely reproduces the ringlike structures in the experiments.
Egues Carlos J.
Ferreira Gerson J.
Freire Henrique J. P.
No associations
LandOfFree
Ringlike structures in the density--magnetic-field $ρ_{xx}$ diagram of two-subband quantum Hall 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 Ringlike structures in the density--magnetic-field $ρ_{xx}$ diagram of two-subband quantum Hall systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ringlike structures in the density--magnetic-field $ρ_{xx}$ diagram of two-subband quantum Hall systems will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-122241