Dynamics and stability of nanostructures on metal surfaces

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Rosenfeld, G. and Morgenstern, K. and Esser, M. and Comsa, G. (1999) Dynamics and stability of nanostructures on metal surfaces. Applied physics A: Materials science & processing, 69 (5). pp. 489-496. ISSN 0947-8396

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Abstract:Ultrathin metal films consisting of two-dimensional clusters are typically unstable: the cluster ensemble has the tendency to reduce its total free energy via Ostwald ripening or dynamic coalescence of mobile clusters. In this paper we give an overview of recent model experiments addressing these coarsening mechanisms. The experiments have been performed using STM on ensembles consisting of adatom or vacancy clusters with typical diameters in the nanometer range on fcc(111)-metal surfaces. Agreement with and deviations from conventional theories are discussed.
Item Type:Article
Copyright:© 1999 Springer
Faculty:
Science and Technology (TNW)
Link to this item:http://purl.utwente.nl/publications/73144
Official URL:http://dx.doi.org/10.1007/s003390051448
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