论文标题
定期门控双层石墨烯作为电子超材料
Periodically Gated Bilayer Graphene as an Electronic Metamaterial
论文作者
论文摘要
我们在定期门控双层石墨烯中研究弹道传输，作为2D电子超材料的候选者。我们的计算使用平衡的绿色功能形式主义，并考虑量子校正来充电密度变化，该密度变化是由定期调制的顶门电压引起的。我们的结果揭示了一种有趣的干扰样模式，类似于Fabry-Perot干涉仪，在电阻图中，作为电压$ v_ {bg} $的函数，应用于扩展的底部门，以及应用于周期性顶门的$ v_ {tg} $。
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.
