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arxiv: 0909.2988 · v1 · submitted 2009-09-16 · ❄️ cond-mat.mtrl-sci · cond-mat.mes-hall

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Ordered states of adatoms on graphene

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classification ❄️ cond-mat.mtrl-sci cond-mat.mes-hall
keywords adatomsgraphenestateaccompaniedbondcorrelateddependencedescribed
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We show that a dilute ensemble of epoxy-bonded adatoms on graphene has a tendency to form a spatially correlated state accompanied by a gap in graphene's electron spectrum. This effect emerges from the electron-mediated interaction between adatoms with a peculiar $1/r^3$ distance dependence. The partial ordering transition is described by a random bond three state Potts model.

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