title: The focusing of electron flow and a Veselago lens in graphene p-n junctions.
abstract: The focusing of electric current by a single p-n junction in graphene is theoretically predicted. Precise focusing may be achieved by fine-tuning the densities of carriers on the n- and p-sides of the junction to equal values. This finding may be useful for the engineering of electronic lenses and focused beam splitters using gate-controlled n-p-n junctions in graphene-based transistors.
authors.affiliation: Physics Department, Lancaster University, Lancaster LA1 4YB, UK. v.cheianov@lancaster.ac.uk
authors.forename: Vadim V
authors.initials: VV
authors.lastname: Cheianov
authors.forename: Vladimir
authors.initials: V
authors.lastname: Fal'ko
authors.forename: B L
authors.initials: BL
authors.lastname: Altshuler