Growth of Dome-Shaped Carbon Nanoislands on Ir(111): The Intermediate between Carbidic Clusters and Quasi-Free-Standing Graphene

被引：182

作者：

Lacovig, Paolo ^{[1
,5
]}

Pozzo, Monica ^{[2
,3
]}

Alfe, Dario ^{[2
,3
]}

Vilmercati, Paolo ^{[4
,5
]}

Baraldi, Alessandro ^{[5
,6
]}

Lizzit, Silvano ^{[1
]}

机构：

[1] Sincrotrone Trieste, I-34012 Trieste, Italy

[2] UCL, Dept Earth Sci, Dept Phys & Astron, London WC1E 6BT, England

[3] UCL, London Ctr Nanotechnol, London WC1E 6BT, England

[4] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA

[5] Univ Trieste, Dept Phys, I-34127 Trieste, Italy

[6] CNR, INFM, Lab TASC, I-34012 Trieste, Italy

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 103卷 / 16期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.103.166101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

By combining high-resolution photoelectron spectroscopy and ab initio calculations, we show that carbon nanoislands formed during the growth of a long-range ordered graphene layer on Ir(111) assume a peculiar domelike shape. The understanding of the unusual growth mechanism of these C clusters, which represent an intermediate phase between the strongly coupled carbidic carbon and a quasi-free-standing graphene layer, can provide information for a rational design of graphenelike systems at the nanoscale.

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