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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

cond-mat.mes-hallarXiv:cond-mat/0108403

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 νT=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/e2.

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