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Immobilization of large size-selected silver clusters on graphite

F Claeyssens1, S Pratontep2, C Xirouchaki and R E Palmer

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This paper discusses a novel deposition route of size-selected metal clusters, specifically AgN+ (where N = 2700), on graphite. The clusters are produced via a magnetron sputtering, gas aggregation cluster beam source and are size selected via a lateral time-of-flight mass filter. These clusters are deposited on a highly oriented pyrolytic graphite (HOPG) target predecorated with surface defects via Ar+ sputtering. Scanning tunnelling spectroscopy (STM) reveals a stable, randomly dispersed array of Ag2700 clusters after deposition.


PACS

68.49.Sf Ion scattering from surfaces (charge transfer, sputtering, SIMS)

68.37.Ef Scanning tunneling microscopy (including chemistry induced with STM)

79.20.Rf Atomic, molecular, and ion beam impact and interactions with surfaces

Subjects

Condensed matter: electrical, magnetic and optical

Surfaces, interfaces and thin films

Dates

Issue 3 (14 February 2006)

Received 13 October 2005

Published 10 January 2006



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