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arXiv · 2006.16707

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

Miloud Mekkaoui·Ahmed Jellal·Hocine Bahlouli
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Abstract

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-H\"anchen (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 zero at transmission resonances.

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Miloud Mekkaoui, Ahmed Jellal, Hocine Bahlouli. 2020-06-30. Goos-H\"anchen Shifts in Gapped Graphene subject to External Fields. https://arxiv.org/abs/2006.16707

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