Possible existence of a band of extended states induced by inter-Landau-band mixing in quantum Hall system

Physics – Condensed Matter – Mesoscale and Nanoscale Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

17 pages, 19 figures

Scientific paper

10.1088/0953-8984/18/6/017

The mixing of states with {\it opposite chirality} in quantum Hall system is shown to have delocalization effect. It is possible that extended states may form bands because of this mixing, as is shown through a numerical calculation on a two-channel network model. Based on this result, a new phase diagram with a narrow {\it metallic} phase separating two adjacent QH phases and/or separating a QH phase from the insulating phase is proposed. The data from recent non-scaling experiments is reanalyzed and shown that they seem to be {\it consistent} with the new phase diagram. However, due to finite-size effects, further study on large system size is still needed to conclude whether there are extended state bands in thermodynamic limit.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Possible existence of a band of extended states induced by inter-Landau-band mixing in quantum Hall system 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 Possible existence of a band of extended states induced by inter-Landau-band mixing in quantum Hall system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Possible existence of a band of extended states induced by inter-Landau-band mixing in quantum Hall system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-111860

All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.