论文标题
导电表面对石墨烯电导率的影响
The influence of a conducting surface on the conductivity of graphene
论文作者
论文摘要
在本文中，使用伪量子电动力学来描述石墨烯中电子之间的相互作用，我们研究了中性石墨烯片的纵向和光导电导率附近的纵向和光电传导率，其计算高达2层扰动顺序。我们表明，随着我们使导电表面更接近石墨烯片，纵向电导率会增加。另一方面，尽管光学电导率最初随板的接近度而增加，但它达到了最大值，以后趋向于最小的电导率，以最小的电导率，在石墨烯和导电表面之间无分离的理想限制中。当与板的距离倾向于无穷大时，我们在文献中恢复了相应的结果。我们的结果可能是控制石墨烯的纵向和光学传导性的另一种方法。
In the present paper, using Pseudo-Quantum Electrodynamics to describe the interaction between electrons in graphene, we investigate the longitudinal and optical conductivities of a neutral graphene sheet near a grounded perfectly conducting surface, with calculations up to 2-loop perturbation order. We show that the longitudinal conductivity increases as we bring the conducting surface closer to the graphene sheet. On the other hand, although the optical conductivity initially increases with the proximity of the plate, it reaches a maximum value, tending, afterwards, to the minimal conductivity in the ideal limit of no separation between graphene and the conducting surface. We recover the correspondent results in the literature when the distance to the plate tends to infinity. Our results may be useful as an alternative way to control the longitudinal and optical conductivities of graphene.
