Affiliation:
1. Laboratory of Theoretical Physics, Faculty of Sciences Chouaïb Doukkali University PO Box 20 24000 El Jadida Morocco
2. Canadian Quantum Research Center 204‐3002 32 Ave Vernon British Columbia V1T 2L7 Canada
Abstract
AbstractThe transmission of Dirac fermions in graphene through a tilted barrier potential in the presence of a laser field of frequency ω is studied. By using Floquet theory, the Dirac equation is solved and then the energy spectrum is obtained. The boundary conditions together with the transfer matrix method allow to determine the transmission probabilities corresponding to all energy bands . By limiting to the central band and the two first side bands , it is shown that the transmissions are strongly affected by the laser field and barrier. Indeed, it is found that the Klein effect is still present, a variety of oscillations are inside the barrier, and there is essentially no transmission across all bands.
Subject
General Physics and Astronomy
Cited by
3 articles.
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