Klein Backscattering and Fabry-Perot Interference in Graphene Heterojunctions

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dc.creatorShytov, A. V.
dc.creatorRudner, M. S.
dc.creatorLevitov, L. S.
dc.date2008-08-04
dc.date2008-08-27
dc.date.accessioned2026-07-07T10:08:39Z
dc.date.available2026-07-07T10:08:39Z
dc.descriptionWe present a theory of quantum-coherent transport through a lateral p-n-p structure in graphene, which fully accounts for the interference of forward and backward scattering on the p-n interfaces. The backreflection amplitude changes sign at zero incidence angle because of the Klein phenomenon, adding a phase $π$ to the interference fringes. The contributions of the two p-n interfaces to the phase of the interference cancel with each other at zero magnetic field, but become imbalanced at a finite field. The resulting half a period shift in the Fabry-Perot fringe pattern, induced by a relatively weak magnetic field, can provide a clear signature of Klein scattering in graphene. This effect is shown to be robust in the presence of spatially inhomogeneous potential of moderate strength.
dc.description5 pgs, 4 fgs
dc.identifierhttps://arxiv.org/abs/0808.0488
dc.identifierhttp://arxiv.org/abs/0808.0488
dc.identifierPhys. Rev. Lett. 101, 156804 (2008)
dc.identifierdoi:10.1103/PhysRevLett.101.156804
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/171069
dc.subjectMesoscale and Nanoscale Physics
dc.titleKlein Backscattering and Fabry-Perot Interference in Graphene Heterojunctions
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