Onset of Interlayer Phase Coherence in a Bilayer Two-Dimensional Electron System: Effect of Layer Density Imbalance
Mesoscale and Nanoscale Physics
2009-11-10 v1
Abstract
Tunneling and Coulomb drag are sensitive probes of spontaneous interlayer phase coherence in bilayer two-dimensional electron systems at total Landau level filling factor . We find that the phase boundary between the interlayer phase coherent state and the weakly-coupled compressible phase moves to larger layer separations as the electron density distribution in the bilayer is imbalanced. The critical layer separation increases quadratically with layer density difference.
Keywords
Cite
@article{arxiv.cond-mat/0406067,
title = {Onset of Interlayer Phase Coherence in a Bilayer Two-Dimensional Electron System: Effect of Layer Density Imbalance},
author = {I. B. Spielman and M. Kellogg and J. P. Eisenstein and L. N. Pfeiffer and K. W. West},
journal= {arXiv preprint arXiv:cond-mat/0406067},
year = {2009}
}
Comments
4 pages, 3 figures