论文标题
大规模的五级和七连接的外延石墨烯设备
Large-scale five- and seven-junction epitaxial graphene devices
论文作者
论文摘要
在毫米尺度的石墨烯P-N交界器上利用了多个电流端子，使I = 2高原处的许多非典型，量化的霍尔电阻的分数倍数可以测量。这些部分采用A/B R_H形式，可以通过分析和模拟确定。这些实验验证了使用LTSpice电路模拟器或最近在类似工作中提出的分析框架的使用。此外，具有大规模连接的几种设备的生产证明了使用简单的紫外线光刻来获得足够清晰的连接的方法。
The utilization of multiple current terminals on millimeter-scale graphene p-n junction devices has enabled the measurement of many atypical, fractional multiples of the quantized Hall resistance at the i=2 plateau. These fractions take the form a/b R_H and can be determined both analytically and by simulations. These experiments validate the use of either the LTspice circuit simulator or the analytical framework recently presented in similar work. Furthermore, the production of several devices with large-scale junctions substantiates the approach of using simple ultraviolet lithography to obtain junctions of sufficient sharpness.
