Reversible modifications of linear dispersion - graphene between boron nitride monolayers - Condensed Matter > Materials ScienceReportar como inadecuado




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Abstract: Electronic properties of the graphene layer sandwiched between two hexagonalboron nitride sheets have been studied using the first-principles calculationsand the minimal tight-binding model. It is shown that for the ABC-stackedstructure in the absence of external field the bands are linear in the vicinityof the Dirac points as in the case of single-layer graphene. For certain atomicconfiguration, the electric field effect allows opening of a band gap of over230 meV. We believe that this mechanism of energy gap tuning couldsignificantly improve the characteristics of graphene-based field-effecttransistors and pave the way for future electronic applications.



Autor: J. Slawinska, I. Zasada, P. Kosinski, Z. Klusek

Fuente: https://arxiv.org/







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