Abstract:First-principles calculations reported here illuminate the effects of the interfacial properties of α-Al2O3 and graphene, with emphasis on the structural and electronic properties. Various contact interfaces and different α-Al2O3 surface terminations are considered with on and slightly-off stoichiometric aluminium oxide. We show that depending on whether aluminium or oxygen is in contact with graphene, an sp 3 structural deformation and spontaneous spin-polarization may occur next to the interface contact. Int… Show more
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