Spin effects in the magneto-drag between double quantum wells
Mesoscale and Nanoscale Physics
2009-10-31 v1
Abstract
We report on the selectivity to spin in a drag measurement. This selectivity to spin causes deep minima in the magneto-drag at odd fillingfactors for matched electron densities at magnetic fields and temperatures at which the bare spin energy is only one tenth of the temperature. For mismatched densities the selectivity causes a novel 1/B-periodic oscillation, such that negative minima in the drag are observed whenever the majority spins at the Fermi energies of the two-dimensional electron gasses (2DEGs) are anti-parallel, and positive maxima whenever the majority spins at the Fermi energies are parallel.
Cite
@article{arxiv.cond-mat/0011017,
title = {Spin effects in the magneto-drag between double quantum wells},
author = {J. G. S. Lok and S. Kraus and M. Pohlt and W. Dietsche and K. von Klitzing and W. Wegscheider and M. Bichler},
journal= {arXiv preprint arXiv:cond-mat/0011017},
year = {2009}
}
Comments
4 pages, 3 figures