Abstract:
We study the plateaux of the integer quantum Hall resistance in a bilayer electron system in tilted magnetic fields. In a narrow range of tilt angles and at certain magnetic fields, the plateau level deviates appreciably from the quantized value with no dissipative transport emerging. A qualitative account of the effect is given in terms of decoupling of the edge states corresponding to different electron layers/Landau levels.
Citation:
E. V. Deviatov, A. A. Shashkin, V. T. Dolgopolov, H.-J. Kutschera, A. Wixforth, K. L. Campman, A. C. Gossard, “Shifting the quantum Hall plateau level in a double layer electron system”, Pis'ma v Zh. Èksper. Teoret. Fiz., 75:1 (2002), 36–38; JETP Letters, 75:1 (2002), 34–36