Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
1997-11-15
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Text file in Latex/Revtex/preprint format, 7 separate PS figures, Physical Review B, in press
Scientific paper
10.1103/PhysRevB.57.6561
Momentum transfer due to Coulomb interaction between two parallel, two-dimensional, narrow, and spatially separated layers, when a current I_{drive} is driven through one layer, is studied in the presence of a perpendicular magnetic field B. The current induced in the drag layer, I_{drag}, is evaluated self-consistently with I_{drive} as a parameter. I_{drag} can be positive or negative depending on the value of the filling factor \nu of the highest occupied bulk Landau level (LL). For a fully occupied LL, I_{drag} is negative, i.e., it flows opposite to I_{drive}, whereas it is positive for a half-filled LL. When the circuit is opened in the drag layer, a voltage \Delta V_{drag} develops in it; it is negative for a half-filled LL and positive for a fully occupied LL. This positive \Delta V_{drag}, expressing a negative Coulomb drag, results from energetically favored near-edge inter-LL transitions that occur when the highest occupied bulk LL and the LL just above it become degenerate.
Geldart D. J. W.
Tso H. C. W.
Vasilopoulos P.
No associations
LandOfFree
Negative Electron-electron Drag Between Narrow Quantum Hall Channels 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 Negative Electron-electron Drag Between Narrow Quantum Hall Channels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Negative Electron-electron Drag Between Narrow Quantum Hall Channels will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-413131