3 papers
cond-mat.mes-hall1998
Interlayer Coherence in the and Bilayer Quantum Hall States
A. Sawada, Z. F. Ezawa, H. Ohno +6
We have measured the Hall-plateau width and the activation energy of the bilayer quantum Hall (BLQH) states at the Landau-level filling factor and 2 by tilting the sample and…
cond-mat.mes-hall1998
Phase Transition in ν=2 Bilayer Quantum Hall State
A. Sawada, Z. F. Ezawa, H. Ohno +6
The Hall-plateau width and the activation energy were measured in the bilayer quantum Hall state at filling factor ν=2, 1 and 2/3, by changing the total electron density and the de…
cond-mat.mes-hall1997
Anomalous Stability of nu=1 Bilayer Quantum Hall State
A. Sawada, Z. F. Ezawa, H. Ohno +6
We have studied the fractional and integer quantum Hall (QH) effects in a high-mobility double-layer two-dimensional electron system. We have compared the "stability" of the QH sta…