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VOLUME 75 (2002) | ISSUE 1 | PAGE 36
Shifting the quantum Hall plateau level in a double layer electron system
PACS: 72.20.My, 73.40.Kp
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.