Quantum kinetic equation and universal conductance fluctuations in graphene
Quantum kinetic equation and universal conductance fluctuations in graphene
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DOI：
10.1103/physrevb.77.193403
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发表时间：
2008-05-01
影响因子：
3.7
通讯作者：
Fal'ko, Vladimir I.
中科院分区：
文献类型：
--
作者：
Kechedzhi, K.;Kashuba, O.;Fal'ko, Vladimir I.
我们在金属谱图摄动理论的框架下分析了石墨烯中的通用电导波动（UCFs）。结果表明，强的谷间散射提高了电子态的谷简并，而在弱的谷间散射下，两个谷独立地起作用，使得UCF的方差将显示出与样品和几何相关的行为。
We analyze universal conductance fluctuations (UCFs) in graphene in the framework of diagrammatic perturbation theory in the metallic regime. It is shown that strong intervalley scattering lifts the valley degeneracy of electronic states, whereas at weak intervalley scattering two valleys independently contribute such that the variance of UCF would be expected to show sample- and geometry-dependent behaviors.