Anomalous Stability of nu=1 Bilayer Quantum Hall State

Preprint

13 May 1997

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9705115

Abstract

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 state in balanced and unbalanced double quantum wells. The behavior of the n=1 QH state is found to be strikingly different from all others. It is anomalously stable, though all other states decay, as the electron density is made unbalanced between the two quantum wells. We interpret the peculiar features of the nu=1 state as the consequences of the interlayer quantum coherence developed spontaneously on the basis of the composite-boson picture.

Keywords

ANOMALOUSLY STABLE
BILAYER QUANTUM
QUANTUM HALL
HALL STATE
STABILITY
QH STATE
MOBILITY

All Related Versions

Version 1, 1997-05-13, ArXiv
Published version: Solid State Communications, 103 (8), 447.

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