Graphene Growth by Metal Etching on Ru(0001)
arXiv:1001.4842 · doi:10.1103/PhysRevB.80.235422
Abstract
Low-energy electron microscopy (LEEM) reveals a new mode of graphene growth on Ru(0001) in which Ru atoms are etched from a step edge and injected under a growing graphene sheet. Based on density functional calculations, we propose a model wherein injected Ru atoms form metastable islands under the graphene. Scanning tunneling microscopy (STM) reveals that dislocation networks exist near step edges, consistent with some of the injected atoms being incorporated into the topmost Ru layer, thereby increasing its density.
20 pages. 9 figures
References in corpus (6)
- Two Dimensional Ir-Cluster Lattices on Moiré of Graphene with Ir(111)
- Unit cell of graphene on Ru(0001): a 25 x 25 supercell with 1250 carbon atoms
- Factors influencing graphene growth on metal surfaces
- Defects of graphene on Ir(111): rotational domains and ridges
- Kinetics and thermodynamics of carbon segregation and graphene growth on Ru(0001)
- Determining the structure of Ru(0001) from low-energy electron diffraction of a single terrace
Cited by in corpus (5)
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- Oxidation of graphene on metals
- Graphene/Au(111) interaction studied by scanning tunneling microscopy
- Interfacial Properties of Bilayer and Trilayer Graphene on Metal Substrates
- Depressions by stacking faults in nanorippled graphene on metals