Quantum and transport conductivities in monolayer graphene

被引：32
|
作者：
Dong, H. M. [1 ]
Xu, W. [1 ,2 ]
Zeng, Z. [1 ]
Lu, T. C. [3 ]
Peeters, F. M. [4 ]
机构：
[1] Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Peoples R China
[2] Australian Natl Univ, Dept Theoret Phys, Res Sch Phys Sci & Engn, Canberra, ACT 0200, Australia
[3] Sichuan Univ, Dept Phys, Chengdu 610064, Peoples R China
[4] Univ Antwerp, Dept Phys, B-2020 Antwerp, Belgium
来源：
PHYSICAL REVIEW B | 2008年 / 77卷 / 23期
关键词：
D O I：
10.1103/PhysRevB.77.235402
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present a detailed theoretical study of the electronic transport properties of monolayer graphene. The quantum and transport conductivities are calculated on the basis of the usual momentum-balance equation derived from a semiclassical Boltzmann equation. We investigate carrier-impurity scattering in a massless Dirac quasiparticle system. The carrier interactions with remote and background impurities are considered, and the carrier-carrier screening is included within the random phase approximation. The dependence of the conductivities on temperature is also examined. Moreover, a very simple analytical formula is proposed such that only one fitting parameter is needed in order to make a quantitative comparison with the experimental results.
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页数：9
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