Local correlation during Ostwald ripening of two-dimensional islands on Ag(111)

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Morgenstern, Karina and Rosenfeld, Georg and Comsa, George (1999) Local correlation during Ostwald ripening of two-dimensional islands on Ag(111). Surface Science, 441 (2-3). pp. 289-300. ISSN 0039-6028

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Abstract:Using two-dimensional Ag adatom islands on Ag(111) as a model system, we study the importance of local correlations in diffusion-limited Ostwald ripening. For the coverages studied (0.08, 0.21, and 0.3 ML), we find that the ripening can be surprisingly well described in a nearest neighbour model based on pairwise atom exchange between neighbouring islands. The results reveal the local nature of diffusion-limited Ostwald ripening and demonstrate the limits of the mean-field theories in describing experimental data.
Item Type:Article
Copyright:© 1999 Elsevier Science B.V.
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Link to this item:http://purl.utwente.nl/publications/73145
Official URL:http://dx.doi.org/10.1016/S0039-6028(99)00775-X
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Metis ID: 128671