Nucleation and growth of nickel nanoclusters on graphene Moiré on Rh(111)

Sicot, M.; Bouvron, S.; Zander, O.; Rüdiger, U.; Dedkov, Yurij S.; Fonin, M.

doi:10.1063/1.3341176

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Nucleation and growth of nickel nanoclusters on graphene Moiré on Rh(111)

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Dedkov, Yurij S.
Molecular Physics, Fritz Haber Institute, Max Planck Society;

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Sicot, M., Bouvron, S., Zander, O., Rüdiger, U., Dedkov, Y. S., & Fonin, M. (2010). Nucleation and growth of nickel nanoclusters on graphene Moiré on Rh(111). Applied Physics Letters, 96(9), 093115-1-093115-3. doi:10.1063/1.3341176.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-F621-C

Abstract

Regularly sized Ni nanoclusters (NCs) have been grown on a graphene Moiré on Rh(111). Using scanning tunneling microscopy, we determine that initial growth of Ni at 150K leads to preferential nucleation of monodispersed NCs at specific sites of the Moiré superstructure. However, a defined long-range ordering of NCs with increasing coverage is not observed. Room temperature Ni deposition leads to the formation of flat triangular-shaped islands which are well-matched to the Moiré registry.