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Science. 2007 Mar 2;315(5816):1252-5.

The focusing of electron flow and a Veselago lens in graphene p-n junctions.

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  • 1Physics Department, Lancaster University, Lancaster LA1 4YB, UK. v.cheianov@lancaster.ac.uk

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.

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PMID:
17332407
[PubMed]
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