High-resolution scanning force microscopy of gold nanoclusters on the KBr (001) surface
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© 2006 American Physical Society (APS). This is the accepted version of the following article: Pakarinen, O. H. & Barth, C. & Foster, A. S. & Nieminen, Risto M. & Henry, C. R. 2006. High-resolution scanning force microscopy of gold nanoclusters on the KBr (001) surface. Physical Review B. Volume 73, Issue 23. 235428/1-10. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.73.235428, which has been published in final form at http://journals.aps.org/prb/abstract/10.1103/PhysRevB.73.235428.
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School of Science |
A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2006
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Language
en
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235428/1-10
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Physical Review B, Volume 73, Issue 23
Abstract
In this study we use a combination of dynamic scanning force microscopy experiments and first-principles simulations to study the imaging process of gold nanoclusters adsorbed on the (001) surface of KBr. In previous experiments atomic resolution was readily obtained on the KBr substrate. However, it was not possible to resolve atoms within the clusters themselves. This correlates with imaging simulations we present here using several different probable tip models: measurable contrast was readily achieved on the KBr surface and on the gold (001) surface, but simulations on the clusters demonstrated poor contrast for all tips. We further consider the role of cluster charging in the tip-surface interaction, and the role that surface defects play in the properties of adsorbed clusters.Description
Keywords
SFM, AFM, clusters, gold, KBr
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Citation
Pakarinen, O. H. & Barth, C. & Foster, A. S. & Nieminen, Risto M. & Henry, C. R. 2006. High-resolution scanning force microscopy of gold nanoclusters on the KBr (001) surface. Physical Review B. Volume 73, Issue 23. 235428/1-10. ISSN 1550-235X (electronic). DOI: 10.1103/physrevb.73.235428.