Classical and quantum magneto-oscillations of current flow near a p-n junction in graphene
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 in magneto-oscillations in the current transmission through the interface with periodicity similar to Shubnikov-de Haas oscillations.
Keywords
Cite
@article{arxiv.1206.3753,
title = {Classical and quantum magneto-oscillations of current flow near a p-n junction in graphene},
author = {Aavishkar A. Patel and Nathan Davies and Vadim Cheianov and Vladimir I. Fal'ko},
journal= {arXiv preprint arXiv:1206.3753},
year = {2012}
}
Comments
5 pages, 4 figures