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Shape transformation of Sn nanocrystals induced by swift heavy-ion irradiation and the necessity of a molten ion track

Giulian, Raquel; Kremer, F.; Araujo, Leandro; Sprouster, David; Kluth, Patrick; Fichtner, P; Byrne, Aidan; Ridgway, Mark C


We report on the spherical to rodlike shape transformation of Sn nanocrystals (NCs) embedded in amorphous SiO2 following irradiation with 185 MeV Au ions. Consistent with previous reports for other metals, transmission electron microscopy demonstrates that under irradiation, Sn NCs larger than a critical size (11 nm) elongate parallel to the incident ion direction, while smaller particles remain spherical. Irradiation-induced NC dissolution is significant, as evident from the formation of...[Show more]

CollectionsANU Research Publications
Date published: 2010
Type: Journal article
Source: Physical Review B: Condensed Matter and Materials
DOI: 10.1103/PhysRevB.82.113410


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