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Selective transmission of Dirac electrons and ballistic magnetoresistance of \textit{n-p} junctions in graphene

Vadim V. Cheianov·Vladimir I. Fal'ko
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Abstract

We show that an electrostatically created n-p junction separating the electron and hole gas regions in a graphene monolayer transmits only those quasiparticles that approach it almost perpendicularly to the n-p interface. Such a selective transmission of carriers by a single n-p junction would manifest itself in non-local magnetoresistance effect in arrays of such junctions and determines the unusual Fano factor in the current noise universal for the n-p junctions in graphene.

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Vadim V. Cheianov, Vladimir I. Fal'ko. 2006-03-23. Selective transmission of Dirac electrons and ballistic magnetoresistance of \textit{n-p} junctions in graphene. https://doi.org/10.1103/physrevb.74.041403

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