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arXiv 0710.2283cond-mat.mes-hall
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石墨烯电子输运系数的唯象研究

Phenomenological study of the electronic transport coefficients of graphene

N. M. R. Peres, J. M. B. Lopes dos Santos, T. Stauber

摘要:

使用半经典的方法和输入的石墨烯的导电性的实验,我们确定的电子传输系数-导电性,导热性和热电性-掺杂的石墨烯的电子密度依赖性。还得到了电导率的电子密度依赖性。最后,我们表明,经典的霍尔效应(低场)在石墨烯中具有相同的形式为独立的电子的情况下,其特征在于由抛物线色散,只要弛豫时间是成比例的动量。

英文摘要:

Using a semi-classical approach and input from experiments on the conductivity of graphene, we determine the electronic density dependence of the electronic transport coefficients -- conductivity, thermal conductivity and thermopower -- of doped graphene. Also the electronic density dependence of the optical conductivity is obtained. Finally we show that the classical Hall effect (low field) in graphene has the same form as for the independent electron case, characterized by a parabolic dispersion, as long as the relaxation time is proportional to the momentum.

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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