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Atomistic processes and the strain distribution in the early stages of thin film growth |
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| Authors: | VS Stepanyuk DI Bazhanov AN Baranov W Hergert AA Katsnelson PH Dederichs J Kirschner |
| Institution: | Fachbereich Physik, Martin-Luther-Universit?t, Halle-Wittenberg, Friedemann-Bach-Platz 6, 06099 Halle, Germany, DE Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, 06120 Halle, Germany, DE Solid State Physics Department, Moscow State University, 119899 Moscow, Russia, RU Institut für Festk?rperforschung, Forschungszentrum Jülich, 52425 Jülich, Germany, DE |
| Abstract: | Structural relaxations in small Co islands on the Cu(001) surface are investigated performing atomistic calculations. We demonstrate that the strain relief at the metal interface in the early stages of heteroepitaxy is more complicated than suggested by simple considerations based on the small mismatch between the Co and Cu bulk metals. We found that the strain distribution in the surface region near the islands varies strongly on an atomic scale. The effect of strain on the shape of the Co islands is revealed. Diffusion on the top of strained islands and edge diffusion are considered. Received: 10 April 2000 / Accepted: 15 May 2000 / Published online: 7 March 2001 |
| Keywords: | PACS: 61 46 +w |
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