Tunneling of Massive Dirac Fermions in Graphene through Time-periodic Potential
Abstract
The energy spectrum of graphene sheet with a single barrier structure having a time periodic oscillating height and subjected to magnetic field is analyzed. The corresponding transmission is studied as function of the obtained energy and the potential parameters. Quantum interference within the oscillating barrier has an important effect on quasiparticles tunneling. In particular the time-periodic electromagnetic field generates additional sidebands at energies \epsilon + l\hbar \omega (l=0,\pm 1, \cdots) in the transmission probability originating from the photon absorption or emission within the oscillating barrier. Due to numerical difficulties in truncating the resulting coupled channel equations we limited ourselves to low quantum channels, i.e. l=0,\pm 1.
Keywords
Cite
@article{arxiv.1312.0575,
title = {Tunneling of Massive Dirac Fermions in Graphene through Time-periodic Potential},
author = {Ahmed Jellal and Miloud Mekkaoui and El Bouazzaoui Choubabi and Hocine Bahlouli},
journal= {arXiv preprint arXiv:1312.0575},
year = {2015}
}
Comments
20 pages, 13 figures, references added. Version to appear in EPJB