Tailoring Graphene with Metals on Top

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 (LDA+U). The electronic properties are sensitive to whether graphene is doped with alkali or transition metals. We estimate the 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 non-magnetic 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.

5 pages, 4 figures

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• Electron-Electron Interactions in Graphene: Current Status and Perspectives
• Properties of Graphene: A Theoretical Perspective
• Edge-functionalized and substitutional doped graphene nanoribbons: electronic and spin properties
• Metal to insulator transition in epitaxial graphene induced by molecular doping
• Electronic Doping and Scattering by Transition Metals on Graphene
• Formation of atomic nanoclusters on graphene sheets
• Energy gap opening in submonolayer lithium on graphene: Local density functional and tight-binding calculations
• Adatoms in Graphene
• Superconducting States in pseudo-Landau Levels of Strained Graphene
• Induced magnetism in transition metal intercalated graphitic systems
• On adatomic-configuration-mediated correlation between electrotransport and electrochemical properties of graphene
• Nonsinusoidal current-phase relation in strongly ferromagnetic and moderately disordered SFS junctions
• Common surface structures of graphene and Au(111) : The effect of rotational angle on adsorption and electronic properties
• Single-layer behavior and slow carrier density dynamic of twisted graphene bilayer
• Realization of Quantum Anomalous Hall Effect in Graphene from \textit{n}-\textit{p} Codoping Induced Stable Atomic-Adsorption
• Tunable charge donation and spin polarization of metal adsorbates on graphene using applied electric field
• Metal adsorption and nucleation on free-standing graphene by low-energy electron point source microscopy (graphene intercalation)
• Localization of metallicity and magnetic properties of graphene and of graphene nanoribbons doped with boron clusters
• Coulomb bound states and resonances due to groups of Ca dimers adsorbed on suspended graphene
• Fluorine Intercalated Graphene: Formation of a 2D Spin Lattice through Pseudoatomization
• Effect of disorder on the electronic properties of graphene: a theoretical approach
• Josephson coupling between superconducting islands on single and bilayer graphene
• The self-consistent charge density functional tight-binding (DFTB) theory study of carbon adatoms using tuned Hubbard U parameters
• Opening of a Gap in Graphene Due to Supercell Potential: Group Theory Point of View