Electrostatic interactions between graphene layers and their environment

被引：125

作者：

Sabio, J. ^{[1
]}

Seoanez, C. ^{[1
]}

Fratini, S. ^{[1
,2
,3
]}

Guinea, F. ^{[1
]}

Castro Neto, A. H. ^{[4
]}

Sols, F. ^{[5
]}

机构：

[1] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain

[2] CNRS, Inst Neel, F-38042 Grenoble 9, France

[3] Univ Grenoble 1, F-38042 Grenoble 9, France

[4] Boston Univ, Dept Phys, Boston, MA 02215 USA

[5] Univ Complutense Madrid, Dept Fis Mat, E-28040 Madrid, Spain

来源：

PHYSICAL REVIEW B | 2008年 / 77卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.77.195409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We analyze the electrostatic interactions between a single graphene layer and a SiO2 substrate, and other materials which may exist in its environment. We obtain that the leading effects arise from the polar modes at the SiO2 surface, and water molecules, which may form layers between the graphene sheet and the substrate. The strength of the interactions implies that graphene is pinned to the substrate at distances greater than a few lattice spacings. The implications for graphene nanoelectromechanical systems, and for the interaction between graphene and a scanning tunneling microscopy tip, are also considered.

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页数：8

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