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Disorder and Cluster Formation during Ion Irradiation of Au Nanoparticles in SiO 2

Kluth, Patrick; Johannessen, Bernt; Foran, Garry J; Cookson, D J; Kluth, Susan; Ridgway, Mark C


Au nanoparticles (NPs) have been formed by ion beam synthesis in 600 nm thin Si O2. Subsequently the NPs were irradiated with 2.3 MeV Sn ions at liquid nitrogen temperature. Samples were analyzed using extended x-ray absorption fine structure (EXAFS) spectroscopy and small angle x-ray scattering (SAXS) as a function of Sn irradiation dose. Transmission electron microscopy shows that the NPs largely retain their spherical shape upon irradiation. However, we observe a reduction in average NP size...[Show more]

CollectionsANU Research Publications
Date published: 2006
Type: Journal article
Source: Physical Review B: Condensed Matter and Materials
DOI: 10.1103/PhysRevB.74.014202


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