Magnetic focusing in triangular electron billiards

Peter Bøggild, A. Kristensen, Poul Erik Lindelof

    Research output: Contribution to journalJournal articleResearchpeer-review

    388 Downloads (Pure)

    Abstract

    The classical ballistic magnetotransport in triangular electron billiards fabricated in a high mobility GaAs heterostructure has been studied at 4.2 K. The sample geometry may be viewed as a double-slit structure with a skewed injection angle. We observe a striking cancellation of the magnetic focusing spectrum compared to the case of a perpendicular injection angle. From numerical and analytical analysis, we confirm that the quenching is a fundamental geometrical effect, and identify two mechanisms responsible for the anomaly. The focusing spectrum of the considered skewed geometry is remarkably sensitive to the angular distribution of injected electrons as well as the overall injection angle. [S0163-1829(99)06619-9].
    Original languageEnglish
    JournalPhysical Review B Condensed Matter
    Volume59
    Issue number20
    Pages (from-to)13067-13072
    ISSN0163-1829
    DOIs
    Publication statusPublished - 1999

    Bibliographical note

    Copyright (1999) by the American Physical Society.

    Keywords

    • TRANSPORT
    • SCATTERING
    • SERIES
    • QUANTUM POINT CONTACTS
    • COMPOSITE FERMIONS
    • RESISTANCE
    • CONDUCTANCE FLUCTUATIONS

    Fingerprint Dive into the research topics of 'Magnetic focusing in triangular electron billiards'. Together they form a unique fingerprint.

    Cite this