Electron-electron interactions in the conductivity of graphene

被引：69
|
作者：
Kozikov, A. A. [1 ]
Savchenko, A. K. [1 ]
Narozhny, B. N. [2 ]
Shytov, A. V. [1 ]
机构：
[1] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England
[2] Karlsruher Inst Technol, Inst Theorie Kondensierten Mat, D-76128 Karlsruhe, Germany
来源：
PHYSICAL REVIEW B | 2010年 / 82卷 / 07期
基金：
英国工程与自然科学研究理事会;
关键词：
FERMI-LIQUID; GAS;
D O I：
10.1103/PhysRevB.82.075424
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of electron-electron interaction on the low-temperature conductivity of graphene is investigated experimentally. Unlike in other two-dimensional systems, the electron-electron interaction correction in graphene is sensitive to the details of disorder. A temperature regime of the interaction correction is identified where quantum interference is partially suppressed by intravalley scattering. We determine the value of the interaction parameter, F-0(sigma) similar or equal to -0.1, and show that its small value is due to the chiral nature of interacting electrons.
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页数：5
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