Weak localization in graphene flakes

被引：364

作者：

Tikhonenko, F. V. ^{[1
]}

Horsell, D. W. ^{[1
]}

Gorbachev, R. V. ^{[1
]}

Savchenko, A. K. ^{[1
]}

机构：

[1] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

Quantum theory;

D O I：

10.1103/PhysRevLett.100.056802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that the manifestation of quantum interference in graphene is very different from that in conventional two-dimensional systems. Because of the chiral nature of charge carriers, it is not only sensitive to inelastic, phase-breaking scattering, but also to a number of elastic scattering processes. We study weak localization in different samples and at different carrier densities, including the Dirac region, and find the characteristic rates that determine it. We show how the shape and quality of graphene flakes affect the values of the elastic and inelastic rates and discuss their physical origin.

引用

页数：4

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