Tailoring graphene with metals on top

B. Uchoa*, Chiung-Yuan Lin, A. H. Castro Neto

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    118 Scopus citations

    Abstract

    We study the effects of metallic doping on the electronic properties of graphene using density functional theory in the local density approximation in the presence of a local charging energy. The electronic properties are sensitive to whether graphene is doped with alkali or transition metals. We estimate the charge transfer from a single layer of potassium on top of graphene in terms of the local charging energy of the graphene sheet. The coating of graphene with a nonmagnetic layer of palladium, on the other hand, can lead to a magnetic instability in coated graphene due to the hybridization between the transition metal and the carbon orbitals.

    Original languageEnglish
    Article number035420
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume77
    Issue number3
    DOIs
    StatePublished - 17 Jan 2008

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