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28 March 2024
 
  » pubmed » pmid17332407

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The focusing of electron flow and a Veselago lens in graphene p-n junctions
Vadim V Cheianov ; Vladimir Fal’ko ; B L Altshuler ;
Date 2 Mar 2007
Journal Science, 315 (5816), 1252-5
AbstractThe 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.
Source PubMed, pmid17332407 doi: 10.1126/science.1138020
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