https://doi.org/10.1140/epjb/e2012-30701-2
Regular Article
Graphene nanoribbon in sharply localized magnetic fields
1 Saudi Center for Theoretical Physics,
31261
Dhahran, Saudi
Arabia
2 Physics Department, King Fahd
University of Petroleum Minerals, 31261
Dhahran, Saudi
Arabia
3 Theoretical Physics Group, Faculty of
Sciences, Chouaïb Doukkali University, 24000
El Jadida,
Morocco
4 Physics Department, College of
Sciences, King Faisal University, 31982
Alahssa, Saudi
Arabia
a e-mail: ahmed.jellal@gmail.com
Received:
30
July
2012
Received in final form:
24
October
2012
Published online:
1
March
2013
We study the effect of a sharply localized magnetic field on the electron transport in a strip (ribbon) of graphene sheet, which allows to give results for the transmission and reflection probability through magnetic barriers. The magnetic field is taken as a single and double delta type localized functions, which are treated later as the zero width limit of Gaussian fields. For both field configurations, we evaluate analytically and numerically their transmission and reflection coefficients. The possibility of spacial confinement due to the inhomogeneous field configuration is also investigated.
Key words: Mesoscopic and Nanoscale Systems
© EDP Sciences, Società Italiana di Fisica and Springer-Verlag, 2013
