The focusing of electron flow and a Veselago lens in graphene p-n junctions |
| |
| Authors: | Cheianov Vadim V Fal'ko Vladimir Altshuler B L |
| |
| Institution: | Physics 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. |
| |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ |
