Abstract
Surface diffusion is one of the basic processes determining morphology of a growing film. In the case of metal heteroepitaxy on Si(111)-(7X7) the diffusion is strongly affected by the presence of surface reconstruction, which introduces additional constraints into the motion of deposited atoms. To determine diffusion parameters we used two different approaches: i) interpretation of experimentally observed morphologies by a coarse-grained kinetic Monte Carlo model, ii) direct observation of adatom movement using UHV STM. The attempt frequency and the barrier to hopping of a single Ag atom between half-unit cells of the reconstruction were estimated in both cases. Obtained values are compared and discussed.
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P. Kocán, P. Sobot´ýk, I. Ošt'ádal: to be published
P. Sobotík, P. Kocán, I. Ošt'ádal: to be published
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Sobotík, P., Ošťádal, I., Kocán, P. et al. Reconstruction-Determined Diffusion of Ag Adatoms on the Si(111)-(7X7) Surface. Czechoslovak Journal of Physics 53, 69–74 (2003). https://doi.org/10.1023/A:1022359705138
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DOI: https://doi.org/10.1023/A:1022359705138