Phase Transition in \nu=2 Bilayer Quantum Hall State
Mesoscale and Nanoscale Physics
2009-10-31 v1
Abstract
The Hall-plateau width and the activation energy were measured in the bilayer quantum Hall state at filling factor \nu=2, 1 and 2/3, by changing the total electron density and the density ratio in the two quantum wells. Their behavior are remarkably different from one to another. The \nu=1 state is found stable over all measured range of the density difference, while the \nu=2/3$ state is stable only around the balanced point. The \nu=2 state, on the other hand, shows a phase transition between these two types of the states as the electron density is changed.
Cite
@article{arxiv.cond-mat/9801085,
title = {Phase Transition in \nu=2 Bilayer Quantum Hall State},
author = {A. Sawada and Z. F. Ezawa and H. Ohno and Y. Horikoshi and Y. Ohno and S. Kishimoto and F. Matsukura and M. Yasumoto and A. Urayama},
journal= {arXiv preprint arXiv:cond-mat/9801085},
year = {2009}
}
Comments
5 pages including figures, RevTeX