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Ion-irradiation-induced amorphization of cobalt nanoparticles

Sprouster, David; Giulian, Raquel; Araujo, Leandro; Kluth, Patrick; Johannessen, B; Nordlund, Kai; Kirby, N; Ridgway, Mark C


The amorphization of Co nanoparticles embedded in SiO2 has been investigated by measuring their structure and size, before and after ion irradiation, by x-ray absorption spectroscopy and small-angle x-ray scattering, respectively. Compared to bulk material, unirradiated crystalline nanoparticles exhibited increased structural disorder and a decreased average coordination number as a result of finite-size effects. Upon irradiation, there was no variation in nanoparticle size yet significant...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Physical Review B: Condensed Matter and Materials
DOI: 10.1103/PhysRevB.81.155414


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