Superfluidity of electron-hole pairs in randomly inhomogeneous bilayer systems
Mesoscale and Nanoscale Physics
2015-05-28 v1
Abstract
In bilayer systems electron-hole (e-h) pairs with spatially separated components (i.e., with electrons in one layer and holes in the other) can be condensed to a superfluid state when the temperature is lowered. This article deals with the influence of randomly distributed inhomogeneities on the superfluid properties of such bilayer systems in a strong perpendicular magnetic field. Ionized impurities and roughenings of the conducting layers are shown to decrease the superfluid current density of the e-h pairs. When the interlayer distance is smaller than or close to the magnetic length, the fluctuations of the interlayer distance considerably reduce the superfluid transition temperature.
Keywords
Cite
@article{arxiv.1106.1777,
title = {Superfluidity of electron-hole pairs in randomly inhomogeneous bilayer systems},
author = {A. I. Bezuglyj and S. I. Shevchenko},
journal= {arXiv preprint arXiv:1106.1777},
year = {2015}
}
Comments
13 pages, 3 figures