Transversal electric field effect in multilayer graphene nanoribbon

Details Transversal electric field effect in multilayer graphene nanoribbon Transversal electric field effect in multilayer graphene nanoribbon

2011-06-06

arxiv.org/abs/1106.1100v1

Appl. Phys. Lett. 98, 263105 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

8pages, 3 fig

Scientific paper

10.1063/1.3604781

We study the effect of transversal electric-field (E-field) on the electronic properties of multilayer armchair-graphene-nanoribbon (AGNR). The bandgap in multilayer-AGNRs can be reversibly modulated with the application of E-field. At optimized widths, we obtain a semiconductor (SC) to metallic (M), as well as M-SC transition. The AGNR electronic bands undergo vivid transformations due to the E-field, leading to phenomena such as increase in electron velocity, change in the sign of the electron effective mass, and the formation of linear dispersion with massless Dirac fermions similar to 2D-graphene. These effects are very useful and can be utilized for device applications.

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