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

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Article number081413
<mark>Journal publication date</mark>20/08/2012
<mark>Journal</mark>Physical Review B
Issue number8
Number of pages4
<mark>Original language</mark>English


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.

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©2012 American Physical Society