Gate-controlled current switch in graphene

Details Gate-controlled current switch in graphene Gate-controlled current switch in graphene

2009-06-22

arxiv.org/abs/0906.3996v2

Appl. Phys. Lett. 95, 092104 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8 pages, 4 figures; minor clarifications, removed content

Scientific paper

10.1063/1.3216580

We study numerically cross conductances in a four-terminal all-graphene setup. We show that far away from the Dirac point current flows along zigzag directions, giving the possibility to guide the current between terminals using a tunable pn-junction. The device operates as a gate-controlled current switch, and the electronic properties of graphene are crucial for efficient performance.

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