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  • E155433

    Rights statement: ©2012 American Physical Society

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    29/06/12

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Skipping and snake orbits of electrons: Singularities and catastrophes

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Article number155433
<mark>Journal publication date</mark>16/04/2012
<mark>Journal</mark>Physical Review B: Condensed Matter
Issue number15
Volume85
Number of pages4
Pages (from-to)-
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

Near the sample edge, or a sharp magnetic field step, the drift of two-dimensional (2D) electrons in a magnetic field has the form of skipping and snake orbits. We show that families of skipping and snake orbits of electrons injected at one point inside a 2D metal generically exhibit caustics folds, cusps, and cusp triplets, and, in one exceptional case, an extreme section of the butterfly bifurcation. Periodic appearance of singularities along the +/- B interface leads to the magneto-oscillations of nonlocal conductance in multiterminal electronic devices.

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©2012 American Physical Society