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Classical and quantum magneto-oscillations of current flow near a p-n junction in graphene

Research output: Contribution to journalJournal article

Published

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Journal publication date20/08/2012
JournalPhysical Review B
Journal number8
Volume86
Number of pages4
Original languageEnglish

Abstract

The proposed semiclassical theory predicts two types of oscillations in the flow of current injected from a point source near a ballistic p-n junction in graphene in a strong magnetic field. One originates from the classical effect of bunching of cyclotron orbits of electrons passing back and forth across the p-n interface, which displays a pronounced dependence on the commensurability between the cyclotron radii in the n and p regions. The other effect is caused by the interference of monochromatic electron waves in p-n junctions with equal carrier densities on the two sides and it consists of magneto-oscillations in the current transmission through the interface with periodicity similar to Shubnikov-de Haas oscillations.

Bibliographic note

©2012 American Physical Society