Charge accumulation at the boundaries of a graphene strip induced by a gate voltage: Electrostatic approach - Condensed Matter > Mesoscale and Nanoscale PhysicsReportar como inadecuado




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Abstract: Distribution of charge induced by a gate voltage in a graphene strip isinvestigated. We calculate analytically the charge profile and demonstrate astrongmacroscopic charge accumulation along the boundaries of amicrometers-wide strip. This charge inhomogeneity is especially important inthe quantum Hall regime where we predict the doubling of the number of edgestates and coexistence of two different types of such states. Applications tographene-based nanoelectronics are discussed.



Autor: P. G. Silvestrov, K. B. Efetov

Fuente: https://arxiv.org/







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