Novel exchange mechanisms in the surface diffusion of oxides

We use temperature-accelerated dynamics to show the importance of exchange mechanisms in surface diffusion and growth of simple oxides. Such mechanisms can dominate transport processes both on terraces and steps for both homoepitaxial and heteroepitaxial growth. We suggest that the mixing inevitable...

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Veröffentlicht in:Journal of physics. Condensed matter 2004-04, Vol.16 (13), p.L187-L192
Hauptverfasser: Harris, Duncan J, Lavrentiev, Mikhail Yu, Harding, John H, Allan, Neil L, Purton, John A
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Sprache:eng
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Zusammenfassung:We use temperature-accelerated dynamics to show the importance of exchange mechanisms in surface diffusion and growth of simple oxides. Such mechanisms can dominate transport processes both on terraces and steps for both homoepitaxial and heteroepitaxial growth. We suggest that the mixing inevitable when an exchange mechanism is present must be considered when attempts are made to grow sharp interfaces in oxide nanostructures. (Example material: BaO.)
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/16/13/L03