Phase Transition in ν=2 Bilayer Quantum Hall State
Preprint
- 10 January 1998
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.Keywords
All Related Versions
- Version 1, 1998-01-10, ArXiv
- Published version: Physical Review Letters, 80 (20), 4534.
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