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Analytical determination of atypical quantized resistances in graphene p-n junctions

机译:石墨烯P-N结中非典型量化电阻的分析法

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摘要

A mathematical approach is introduced for predicting quantized resistances in graphene p-n junction devices that utilize more than a single entry and exit point for electron flow. Depending on the configuration of an arbitrary number of terminals, electrical measurements yield nonconventional, fractional multiples of the typical quantized Hall resistance at the nu = 2 plateau (R-H approximate to 12906 Omega) and take the form: a/bR(H). This theoretical formulation is independent of material, and applications to other material systems that exhibit quantum Hall behaviors are to be expected. Furthermore, this formulation is supported with experimental data from graphene devices with multiple source and drain terminals.
机译:引入了一种数学方法,用于预测石墨烯P-n结装置中的量化电阻,其利用多于单个进入和电子流的出口点。 取决于任意数量的终端的配置,电测量产生的典型量化霍尔电阻的非转化,分数倍数在Nu = 2平台(R-H近似为12906ω)并采用形式:A / Br(H)。 该理论制剂与材料无关,并且预期应用于表现出量子霍尔行为的其他材料系统。 此外,该配方由具有多个源极和漏极端子的石墨烯装置的实验数据支持。

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