Fermi velocity renormalization in doped graphene

被引：48

作者：

Attaccalite, C. ^{[1
,2
]}

Rubio, A. ^{[1
,2
]}

机构：

[1] Ctr Joxe Mari Korta, ETSF, San Sebastian 20018, Spain

[2] Univ Basque Country, Fac Quim, Dept Fis Mat, Unidad Fis Mat,Ctr Mixto,Donostia Int Phys Ctr, E-20080 San Sebastian, Spain

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2009年 / 246卷 / 11-12期

关键词：

TOOL;

D O I：

10.1002/pssb.200982335

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present an ab initio study of the graphene quasi-particle band structure within GW approximation. In particular we studied the renormalization of the Fermi Velocity V-F as function of the electrostatic doping. We show that within local density approximation (LDA) the Fermi velocity is substantially renormalized by correlation effects and that this renormalization rapidly decreases with doping. We discuss our results in the light of recent experiments on graphene and intercalate graphite. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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页码：2523 / 2526

页数：4

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