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Skipping and snake orbits of electrons: Singularities and catastrophes

Research output: Contribution to journalJournal articlepeer-review

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


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.

Bibliographic note

©2012 American Physical Society