Interedge phase coherence in quantum Hall line junctions

A. Mitra, S. M. Girvin

    Research output: Contribution to journalArticle

    Abstract

    Kang et al. have recently observed a remarkable zero-bias anomaly in the spectrum for electron tunneling between two two-dimensional electron gases separated laterally by a narrow but high barrier in the presence of a perpendicular quantizing magnetic field. We argue that this is a result of interedge phase coherence analogous to the interlayer phase coherence seen in quantum Hall effect (QHE) bilayer systems. The disruption of the QHE by the barrier is "healed" by strong Coulomb exchange enhancement of the weak tunneling through the barrier.

    Original languageEnglish (US)
    Article number041309
    Pages (from-to)413091-413094
    Number of pages4
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume64
    Issue number4
    StatePublished - Jul 15 2001

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    Quantum Hall effect
    phase coherence
    quantum Hall effect
    Two dimensional electron gas
    Electron tunneling
    Magnetic fields
    electron tunneling
    electron gas
    interlayers
    anomalies
    augmentation
    magnetic fields

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Interedge phase coherence in quantum Hall line junctions. / Mitra, A.; Girvin, S. M.

    In: Physical Review B - Condensed Matter and Materials Physics, Vol. 64, No. 4, 041309, 15.07.2001, p. 413091-413094.

    Research output: Contribution to journalArticle

    Mitra, A & Girvin, SM 2001, 'Interedge phase coherence in quantum Hall line junctions', Physical Review B - Condensed Matter and Materials Physics, vol. 64, no. 4, 041309, pp. 413091-413094.
    Mitra, A. ; Girvin, S. M. / Interedge phase coherence in quantum Hall line junctions. In: Physical Review B - Condensed Matter and Materials Physics. 2001 ; Vol. 64, No. 4. pp. 413091-413094.
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