Periodically Gated Bilayer Graphene as an Electronic Metamaterial

We study ballistic transport in periodically gated bilayer graphene as a candidate for a 2D electronic metamaterial. Our calculations use the equilibrium Green function formalism and take into account quantum corrections to charge density changes induced by a periodically modulated top gate voltage. Our results reveal an intriguing interference-like pattern, similar to that of a Fabry-Perot interferometer, in the resistance map as a function of the voltage $V_{BG}$ applied to the extended bottom gate and $V_{TG}$ applied to the periodic top gate.

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