Few-layer graphene on SiC, pyrolitic graphite, and graphene:: A Raman scattering study

被引：263

作者：

Faugeras, C. ^{[1
]}

Nerriere, A. ^{[1
]}

Potemski, M. ^{[1
]}

Mahmood, A. ^{[2
]}

Dujardin, E. ^{[2
]}

Berger, C. ^{[3
]}

de Heer, W. A. ^{[3
]}

机构：

[1] CNRS, Grenoble High Magnet Field Lab, F-38042 Grenoble, France

[2] CNRS, CEMES, F-31055 Toulouse, France

[3] Georgia Inst Technol, Atlanta, GA 30332 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 01期

关键词：

D O I：

10.1063/1.2828975

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The results of micro-Raman scattering measurements performed on three different "graphitic" materials: microstructured disks of highly oriented pyrolytic graphite, graphene multilayers thermally decomposed from carbon-terminated surface of 4H-SiC and an exfoliated graphene monolayer are presented. Despite its multilayer character, most parts of the surface of the graphitized SiC substrates shows a single component, Lorentzian shape, double resonance Raman feature in striking similarity to the case of a single graphene monolayer. Our observation suggests a very weak electronic coupling between graphitic layers on the SiC surface, which therefore can be considered to be graphene multilayers with a simple (Dirac-like) band structure. (c) 2008 American institute of Physics.

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页数：3

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