Tunable Adsorbate-Adsorbate Interactions on Graphene

被引：22
|
作者：
Solenov, Dmitry [1 ]
Junkermeier, Chad [1 ]
Reinecke, Thomas L. [2 ]
Velizhanin, Kirill A. [3 ]
机构：
[1] Natl Acad, Natl Res Council, Washington, DC 20001 USA
[2] Naval Res Lab, Washington, DC 20375 USA
[3] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
来源：
PHYSICAL REVIEW LETTERS | 2013年 / 111卷 / 11期
关键词：
ELASTIC INTERACTION;
D O I：
10.1103/PhysRevLett.111.115502
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We propose a mechanism to control the interaction between adsorbates on graphene. The interaction between a pair of adsorbates-the change in adsorption energy of one adsorbate in the presence of another-is dominated by the interaction mediated by graphene's pi electrons and has two distinct regimes. Ab initio density functional, numerical tight-binding, and analytical calculations are used to develop the theory. We demonstrate that the interaction can be tuned in a wide range by adjusting the adsorbate-graphene bonding or the chemical potential.
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页数：5
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