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Paper detail

Current modulation in graphene p-n junctions with external fields

In this work we describe a proposal for a graphene-based nanostructure that modulates electric current even in the absence of a gap in the band structure. The device consists of a graphene p-n junction that acts as a Veselago lens that focuses ballistic electrons on the output lead. Applying external (electric and magnetic) fields changes the position of the output focus, reducing the transmission. Such device can be applied to low power field effect transistors, which can benefit from graphene's high electronic mobility.

preprint2020arXivOpen access
F. R. V. AraújoD. R. da CostaA. C. S. NascimentoJ. M. Pereira Jr
cond-mat.mes-hall
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F. R. V. AraújoD. R. da CostaA. C. S. NascimentoJ. M. Pereira Jr

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