Amorphization of embedded Cu nanocrystals by ion irradiation

B. Johannessen*, P. Kluth, D. J. Llewellyn, G. J. Foran, D. J. Cookson, M. C. Ridgway

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    33 Citations (Scopus)


    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 return amorphized material to the crystalline form.

    Original languageEnglish
    Article number073119
    JournalApplied Physics Letters
    Issue number7
    Publication statusPublished - 2007


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