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arXiv 1401.6880cond-mat.mes-hallquant-ph
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石墨烯单层最小电导率的准相对论计算

Quasi-relativistic calculus of graphene monolayer minimal conductivity

Halina V. Grushevskaya, George Krylov

摘要:

介绍了石墨烯单分子层中量子输运的准相对论理论。它是基于Dirac-Hartry- Fock自洽场近似,晶格反铁磁有序假设和一种方法[Falkovsky和Varlamov,Eur.~物理学~ J. { \bf B 56},281(2007)]。当仅考虑非相对论电流时,石墨烯的最小电导率被示出为$4.83$(以$e^2/h$为单位)。考虑到电子对产生过程和磁电效应对电流的准相对论修正,我们得到了最小电导率的结果,这些结果与不同载体的实验数据非常吻合。

英文摘要:

We introduce a quasi-relativistic theory of quantum transport in graphene monolayer. It is based on the Dirac -- Hartry -- Fock self-consistent field approximation, assumption on lattice anti-ferromagnetic ordering and an approach [Falkovsky and Varlamov, Eur.~Phys.~J. {\bf B 56}, 281(2007)]. Minimal conductivity of graphene is shown to be $4.83$ (in units of $e^2/h$) when accounting for non-relativistic current only. Allowing for quasi-relativistic corrections to current due to process of pairs production and magneto-electric effects we obtain the results for the minimal conductivity which are in a very good agreement with experimental data for different supports.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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