Title

Exchange-Driven Bilayer-to-Monolayer Charge Transfer in an Asymmetric Double-Quantum-Well

Document Type

Article

Publication Date

1-2002

Abstract

We present data which shows for the first time that an exchange-driven bilayer-to-monolayer transition occurs in an externally biased double quantum well system at B=0 as the total carrier density is increased. This transition is due to the negative compressibility of the low density carrier systems and the layer imbalance caused by external gate biases.

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