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Please use this identifier to cite or link to this item: http://hdl.handle.net/2307/334

Title: Island and wetting-layer intermixing in the Ge/Si(001) system uponcapping
Authors: De Seta, Monica
Capellini, Giovanni
Evangelisti, Florestano
Keywords: Self-assembled islands
Issue Date: Aug-2009
Publisher: Elsevier Science
Abstract: In this paper we present an atomic force microscopy and X-rayphotoemission spectroscopy study of the composition and shape evolutionof self-assembled Ge/Si(001) islands upon capping with Si. We foundthat the islands undergo a reverse Straski-Krastanov shape evolution,with a progressive Si-enrichment of both the wetting layer and theislands. We demonstrate that the island shape evolves at constantvolume with silicon atom incorporation occurring in the absence oflateral diffusion of Ge and Si atom
URI: http://hdl.handle.net/2307/334
ISSN: 0749-6036
DOI: 10.1016/j.spmi.2008.10.004
Appears in Collections:A - Articolo su rivista
X_Dipartimento di Fisica 'Edoardo Amaldi'

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