Control of electric current by graphene edge structure engineering

Details Control of electric current by graphene edge structure engineering Control of electric current by graphene edge structure engineering

2009-08-03

arxiv.org/abs/0908.0176v1

Appl. Phys. Lett. 95, 082109 (2009).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

accepted for publication in Appl. Phys. Lett

Scientific paper

10.1063/1.3206915

In graphene nanoribbon junctions, the nearly perfect transmission occurs in some junctions while the zero conductance dips due to anti-resonance appear in others. We have classified the appearance of zero conductance dips for all combinations of ribbon and junction edge structures. These transport properties do not attribute to the whole junction structure but the partial corner edge structure, which indicates that one can control the electric current simply by cutting a part of nanoribbon edge. The ribbon width is expected to be narrower than 10 nm in order to observe the zero conductance dips at room temperature.

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