Stability of two-dimensional clusters on crystal surfaces: from Ostwald ripening to single-cluster decay

Rosenfeld, Georg and Morgenstern, Karina and Beckmann, Ingo and Wulfhekel, Wulf and Laegsgaard, Erik and Besenbacher, Flemming and Comsa, George (1998) Stability of two-dimensional clusters on crystal surfaces: from Ostwald ripening to single-cluster decay. Surface Science, 402-40 . pp. 401-408. ISSN 0039-6028

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Abstract:	An overview is given of recent work on the decay of two-dimensional clusters on a Ag(111) surface. Experimental studies using scanning tunnelling microscopy are presented, and various approaches to extract quantitative information on the relevant atomic processes from cluster decay experiments are discussed. It is shown that for typical surface morphologies, the decay rate of individual clusters depends critically on their local environment. Quantitative analysis therefore generally requires complex and detailed case-by-case modelling involving numerical methods. This difficulty can be overcome experimentally by preparing well-defined model structures for which an analytical description can be used without any loss of accuracy.
Item Type:	Article
Copyright:	© 1998 Elsevier Science B.V.
Research Group:	Solid State Physics (VSF)
Link to this item:	http://purl.utwente.nl/publications/73150
Official URL:	http://dx.doi.org/10.1016/S0039-6028(98)00024-7
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