Phys. Rev. B 77, 153404 (2008) [4 pages]Conditions for organized nanoring growth using kinetic Monte Carlo simulationsReceived 11 January 2008; published 4 April 2008 Kinetic Monte Carlo simulations are carried out to analyze the conditions for the occurrence of organized nanorings in heteroepitaxy by alternatively depositing two different atomic species on a perfect surface. We demonstrate that drastic conditions are required on the flux and substrate temperature and on the activation barriers of the species including their environment to provide such organized nanostructures. These constraints come from the competition between flux and diffusion along island edges on the one hand and between flux and intermixing on the other hand. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.77.153404
DOI:
10.1103/PhysRevB.77.153404
PACS:
81.15.−z, 02.70.−c, 66.70.Df, 79.60.Jv
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