An influence of parallel electric field on the dispersion relation of graphene – a new route to Dirac logics
|Jakub Sołtys 1, Stanisław Krukowski 1,2, Jolanta Borysiuk 3, Jacek Piechota 1|
1. University of Warsaw, Interdisciplinary Centre for Mathematical and Computational Modelling (ICM), Pawinskiego 5a, Warsaw 02-106, Poland
Ab initio density functional theory (DFT) simulations were used to investigate an influence of electric field, parallel to single and multilayer graphene on its electron dispersion relations close to K point. It was shown that for both single layer and AAAA stacking multilayer graphene under influence of parallel field the dispersion relations transform to nonlinear, i.e. emergence of mass. The effect, associated with the hexagonal symmetry breaking, opens new route to high speed transistors and logical devices working in Dirac regime. The implementation of such device is presented.
This work has been supported by Polish Ministry of Science and Higher
Presentation: Oral at 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17, Topical Session 7, by Jakub Sołtys
See On-line Journal of 17th International Conference on Crystal Growth and Epitaxy - ICCGE-17
Submitted: 2013-05-07 22:18 Revised: 2013-08-01 05:07