Interlayer Magnetic Coupling and the Quantum Hall Effect in Multilayer Electron Systems
Mesoscale and Nanoscale Physics
2009-10-31 v1
Abstract
We study the effect that the electron-electron interaction has on the properties of a multilayer electron system. We consider the case corresponding to filling factor unity in each layer. We find that as a function of the sample parameters the system has ferromagnetic, canted antiferromagnetic or paramagnetic interlayer spin correlations. These three ground states are QHE phases, because of the existence of a finite activation energy. In the ferromagnetic phase the gap is due to the intrawell exchange energy, whereas in the paramagnetic phase the gap appears due to the spatial modulation of the interwell coherence.
Cite
@article{arxiv.cond-mat/9804298,
title = {Interlayer Magnetic Coupling and the Quantum Hall Effect in Multilayer Electron Systems},
author = {Luis Brey},
journal= {arXiv preprint arXiv:cond-mat/9804298},
year = {2009}
}
Comments
4 ps pages