Europhys. Lett, 47 (4), pp. 435-441 (1999)
Interaction between steps and reconstruction on
V. Repain 1, J. M. Berroir 1, S. Rousset 1 and J. Lecoeur 2
1 Groupe de Physique des Solides, Universités Paris 7
et 6 , CNRS, UMR 75-88
2 place Jussieu, 75251 Paris Cedex, France
2 Laboratoire de Physico-chimie des Surfaces, CNRS UPRES-A 70-45, ENSCP
11 rue Pierre et Marie Curie, 75231 Paris Cedex, France
(received 19 April 1999; accepted 17 June 1999)
PACS. 61.16Ch - Scanning probe microscopy: scanning tunneling, atomic force,
scanning optical, magnetic force, etc.
PACS. 68.35Bs - Surface structure and topography.
Due to its famous reconstruction, the Au(111) surface can be considered as an ideal substrate to grow nanostructured arrays of metallic clusters. In this letter, we report a complete investigation of the interaction between this reconstruction and the close-packed steps of the Au(111) surface. Scanning tunneling microscopy experiments clearly demonstrate that the behaviour of the reconstruction in the vicinity of steps depends drastically on the step microstructure. This result, of particular interest for the managing of new nanostructured substrates, is interpreted in terms of the relative stability of both types of steps.
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