The focusing of electron flow and a Veselago lens in graphene p-n junctions.
نویسندگان
چکیده
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.
منابع مشابه
Veselago Lens for Electrons: Focusing and Caustics in Graphene p-n Junctions
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ورودعنوان ژورنال:
- Science
دوره 315 5816 شماره
صفحات -
تاریخ انتشار 2007