2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/109491We 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.4 pages, 2 figsMesoscale and Nanoscale Physicstext