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Amorphization of embedded Cu nanocrystals by ion irradiation

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


While bulk crystalline elemental metals cannot be amorphized by ion irradiation in the absence of chemical impurities, the authors demonstrate that finite-size effects enable the amorphization of embedded Cu nanocrystals. The authors form and compare the atomic-scale structure of the polycrystalline, nanocrystalline, and amorphous phases, present an explanation for the extreme sensitivity to irradiation exhibited by nanocrystals, and show that low-temperature annealing is sufficient to...[Show more]

CollectionsANU Research Publications
Date published: 2007-02-16
Type: Journal article
Source: Applied Physics Letters 90.7 (2007): 073119/1-3
DOI: 10.1063/1.2644413


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