Coulomb drag in double quantum wells with a perpendicular magnetic field
M.W. Wu, H.L. Cui, and N.J.M. Horing
TL;DR
This paper investigates Coulomb drag between two quantum wells under a perpendicular magnetic field, revealing enhanced momentum transfer and oscillations due to magnetic effects at low temperatures.
Contribution
It demonstrates that a perpendicular magnetic field significantly enhances Coulomb drag and introduces oscillations beyond known Shubnikov-de Haas effects.
Findings
Magnetic field markedly enhances Coulomb drag.
Oscillations in drag effect appear due to magnetic field.
Drag effect shows Shubnikov-de Haas oscillations.
Abstract
Momentum transfer due to electron-electron interaction (Coulomb drag) between two quantum wells, separated by a distance , in the presence of a perpendicular magnetic field, is studied at low temperatures. We find besides the well known Shubnikov-de Haas oscillations, which also appear in the drag effect, the momentum transfer is markedly enhanced by the magnetic field.
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