Anomalous Hall Resistance in Bilayer Quantum Hall Systems

Details Anomalous Hall Resistance in Bilayer Quantum Hall Systems Anomalous Hall Resistance in Bilayer Quantum Hall Systems

2007-01-04

arxiv.org/abs/cond-mat/0701063v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 3 figures

Scientific paper

10.1103/PhysRevB.76.045307

We present a microscopic theory of the Hall current in the bilayer quantum Hall system on the basis of noncommutative geometry. By analyzing the Heisenberg equation of motion and the continuity equation of charge, we demonstrate the emergence of the phase current in a system where the interlayer phase coherence develops spontaneously. The phase current arranges itself to minimize the total energy of the system, as induces certain anomalous behaviors in the Hall current in the counterflow geometry and also in the drag experiment. They explain the recent experimental data for anomalous Hall resistances due to Kellogg et al. [M. Kellogg, I.B. Spielman, J.P. Eisenstein, L.N. Pfeiffer and K.W. West, Phys. Rev. Lett. \textbf{88} (2002) 126804; M. Kellogg, J.P. Eisenstein, L.N. Pfeiffer and K.W. West, Phys. Rev. Lett. \textbf{93} (2004) 036801] and Tutuc et al. [E. Tutuc, M. Shayegan and D.A. Huse, Phys. Rev. Lett. \textbf{93} (2004) 036802] at $\nu =1$.

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