Nonlinear screening of charge impurities in graphene

被引：115
|
作者：
Katsnelson, M. I. [1 ]
机构：
[1] Radboud Univ Nijmegen, Inst Mol & Mat, NL-6525 ED Nijmegen, Netherlands
来源：
PHYSICAL REVIEW B | 2006年 / 74卷 / 20期
关键词：
D O I：
10.1103/PhysRevB.74.201401
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
It is shown that a "vacuum polarization" induced by Coulomb potential in graphene leads to a strong suppression of electric charges even for undoped case (no charge carriers). A standard linear response theory is therefore not applicable to describe the screening of charge impurities in graphene. In particular, it overestimates essentially the contributions of charge impurities into the resistivity of graphene.
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页数：3
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