Self-assembly of iron nanoclusters on the Fe3O4(111) superstructured surface
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2005Citation:
Berdunov, N.; Mariotto, G.; Murphy, S.; Balakrishnan, K.; Shvets, I. V., Self-assembly of iron nanoclusters on the Fe3O4(111) superstructured surface, Physical Review B (Condensed Matter and Materials Physics), 71, 11, 2005, 113406Download Item:
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Abstract:
We report on the self-organized growth of a regular array of Fe nanoclusters on a nanopatterned magnetite
surface. Under oxidizing preparation conditions, the s111d surface of magnetite exhibits a regular superstructure
with three-fold symmetry and a 42 ? periodicity. This superstructure represents an oxygen-terminated
s111d surface, which is reconstructed to form a periodically strained surface. A Fe film of 0.5 ? thickness was
deposited on this surface at room temperature. Fe nanoclusters are formed on top of the surface superstructure
creating a regular array with the periodicity of the superstructure. We demonstrate that at higher coverage Fe
growth switches from two- to three-dimensional mode. In the areas of the surface where the strain pattern is not
formed, random nucleation of Fe was observed.
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Science Foundation Ireland (SFI)
Author's Homepage:
http://people.tcd.ie/ivchvetshttp://people.tcd.ie/mariotl
http://people.tcd.ie/shmurphy
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Physical Review B (Condensed Matter and Materials Physics)71
11
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Surface Physics, thin filmsDOI:
http://dx.doi.org/10.1103/PhysRevB.71.113406Licences: