• Corpus ID: 220265649

Goos-H\"anchen Shifts in Gapped Graphene subject to External Fields

@article{Mekkaoui2020GoosHanchenSI,
  title={Goos-H\"anchen Shifts in Gapped Graphene subject to External Fields},
  author={Miloud Mekkaoui and Ahmed Jellal and H. Bahlouli},
  journal={arXiv: Mesoscale and Nanoscale Physics},
  year={2020}
}
We study Dirac fermions in gapped graphene that are subjected to a magnetic field and a potential barrier harmonically oscillating in time. The tunneling modes inside the gap and the associated Goos-Hanchen (GH) shifts are analytically investigated. We show that the GH shifts in transmission for the central band and the first two sidebands change sign at the Dirac points $\epsilon+l\hbar\tilde{\omega}$ $(l=0,\pm 1)$. We also find that the GH shifts can be either negative or positive and becomes… 

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