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arXiv · 1301.5920

Tunable Adsorbate-Adsorbate Interactions on Graphene

Dmitry Solenov·Chad Junkermeier·Thomas L. Reinecke·Kirill A. Velizhanin
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Abstract

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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Dmitry Solenov, Chad Junkermeier, Thomas L. Reinecke, Kirill A. Velizhanin. 2013-01-24. Tunable Adsorbate-Adsorbate Interactions on Graphene. https://doi.org/10.1103/physrevlett.111.115502

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