Sublattice ordering in a dilute ensemble of defects in graphene

Abstract

Defects in graphene, such as vacancies or adsorbents attaching themselves to carbons, may preferentially take positions on one of its two sublattices, thus breaking the global lattice symmetry. This leads to opening a gap in the electronic spectrum. We show that such a sublattice ordering may spontaneously occur in a dilute ensemble defects, due to the long-range interaction between them mediated by electrons. As a result sublattice-ordered domains may form, with electronic properties characteristic of a two-dimensional topological insulator.

to appear in Europhysics Letters

References in corpus (7)

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Cited by in corpus (7)

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• Ordering of magnetic impurities and tunable electronic properties of topological insulators
• Electrically Controlled Adsorption of Oxygen in Bilayer Graphene Devices
• Peierls-type Instability and Tunable Band Gap in Functionalized Graphene
• Transport scattering time probed through rf admittance of a graphene capacitor
• Spin-Polarized Semiconductor Induced by Magnetic Impurities in Graphene
• Transport anomaly at the ordering transition for adatoms on graphene