Preparation and characterization of MgO stepped surfaces |
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| Authors: | S Benedetti P Torelli E Gualtieri A Rota |
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| Institution: | a INFM-CNR National Research Center on NanoStructures and BioSystems at Surfaces (S3), Via G. Campi 213/a, 41100 Modena, Italy
b Università di Modena e Reggio Emilia, Dipartimento di Fisica, Via G. Campi 213/a, 41100 Modena, Italy |
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| Abstract: | We present a study of the preparation procedure for stepped MgO surfaces which can be used as templates for the deposition of metallic nanostructures. A cleaved sample of MgO(0 0 1) was mechanically polished to reach the desired miscut angle along the 1 1 0] direction. Then a thermal annealing was performed. The effect of an intermediate chemical etching has been also studied. The surface was analyzed by means of contact AFM in air, LEED and XPS in UHV. The role of the chemical etching and the dependence of the final morphology on the annealing time and temperature were investigated. The influence of the miscut angle on the final surface topography is also briefly discussed. |
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| Keywords: | Atomic force microscopy Magnesium oxide Stepped single crystal surface XPS |
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