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

Sicot, M.; Bouvron, S.; Zander, O.; Rüdiger, U.; Dedkov, Yu. S.; Fonin, M.
March 2010
Applied Physics Letters;3/1/2010, Vol. 96 Issue 9, p093115
Academic Journal
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 150 K 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.


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