We present a study of the preparation procedure for stepped MgO surfaces which can be used as templates for the deposition ofmetallic nanostructures. A cleaved sample of MgO(001) was mechanically polished to reach the desired miscut angle along the [110]direction. Then a thermal annealing was performed. The effect of an intermediate chemical etching has been also studied. The surfacewas analyzed by means of contact AFM in air, LEED and XPS in UHV. The role of the chemical etching and the dependence ofthe final morphology on the annealing time and temperature were investigated. The influence of the miscut angle on the final surfacetopography is also briefly discussed._ 2006 Elsevier B.V. All rights reserved.
Preparation and characterization of MgO stepped surfaces” / Benedetti, S.; Torelli, P.; Luches, P.; Gualtieri, E.; Valeri, S.; Rota, A.. - In: SURFACE SCIENCE. - ISSN 0039-6028. - STAMPA. - 601:13(2007), pp. 2636-2640. [10.1016/j.susc.2006.11.066]
Preparation and characterization of MgO stepped surfaces”
S. Benedetti;A. Rota
2007
Abstract
We present a study of the preparation procedure for stepped MgO surfaces which can be used as templates for the deposition ofmetallic nanostructures. A cleaved sample of MgO(001) was mechanically polished to reach the desired miscut angle along the [110]direction. Then a thermal annealing was performed. The effect of an intermediate chemical etching has been also studied. The surfacewas analyzed by means of contact AFM in air, LEED and XPS in UHV. The role of the chemical etching and the dependence ofthe final morphology on the annealing time and temperature were investigated. The influence of the miscut angle on the final surfacetopography is also briefly discussed._ 2006 Elsevier B.V. All rights reserved.
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