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Observation of Quantized Hall Drag in a Strongly Correlated Bilayer Electron System

M. Kellogg·I. B. Spielman·J. P. Eisenstein·L. N. Pfeiffer·K. W. West
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Abstract

The frictional drag between parallel two-dimensional electron systems has been measured in a regime of strong interlayer correlations. When the bilayer system enters the excitonic quantized Hall state at total Landau level filling factor ν_T=1 the longitudinal component of the drag vanishes but a strong Hall component develops. The Hall drag resistance is observed to be accurately quantized at h/e^2.

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M. Kellogg, I. B. Spielman, J. P. Eisenstein, L. N. Pfeiffer, K. W. West. 2002-02-15. Observation of Quantized Hall Drag in a Strongly Correlated Bilayer Electron System. https://doi.org/10.1103/physrevlett.88.126804

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