In this work we present a study of Fe self-organization on thesurface of stepped MgO as a function of deposition temperatureand thickness. The Fe morphology results in being very muchinfluenced by the presence on the MgO terraces of a roughnessdue to exposure of the sample to the air. Because of the additionalsites introduced by the MgO roughness, at room temperature Fenucleates indistinctly on steps and terraces. Dramatic changes inthe Fe nucleation appear on increasing the deposition temperatureto 800 K. Here Fe diffuses on the MgO terraces and 40% of theclusters nucleate on step edges. This effect is more evident ondecreasing the amount of Fe deposit.' 2008 Elsevier Ltd. All rights reserved.
Fe self-organization on stepped MgO surfaces / Benedetti, S; Gragnaniello, Luca; Franchini, Mirko; Torelli, P; Valeri, Sergio. - In: SUPERLATTICES AND MICROSTRUCTURES. - ISSN 0749-6036. - STAMPA. - 46:1-2(2009), pp. 153-158. [10.1016/j.spmi.2008.11.003]
Fe self-organization on stepped MgO surfaces
BENEDETTI S;GRAGNANIELLO, Luca;FRANCHINI, MIRKO;VALERI, Sergio
2009
Abstract
In this work we present a study of Fe self-organization on thesurface of stepped MgO as a function of deposition temperatureand thickness. The Fe morphology results in being very muchinfluenced by the presence on the MgO terraces of a roughnessdue to exposure of the sample to the air. Because of the additionalsites introduced by the MgO roughness, at room temperature Fenucleates indistinctly on steps and terraces. Dramatic changes inthe Fe nucleation appear on increasing the deposition temperatureto 800 K. Here Fe diffuses on the MgO terraces and 40% of theclusters nucleate on step edges. This effect is more evident ondecreasing the amount of Fe deposit.' 2008 Elsevier Ltd. All rights reserved.
Pubblicazioni consigliate
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris
