Structural modification of a multiply twinned nanoparticle by ion irradiation: A molecular dynamics study
- 15 December 2007
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 102 (12), 124304
- https://doi.org/10.1063/1.2825045
Abstract
We study the possibility of modifying the structure of a multiply twinned nanoparticle by ion irradiation. Molecular dynamics simulations are carried out for the prototypic case of a metastable icosahedral Pt particle bombarded with He and Xe ions in the energy range of . A single xenon impact can be used to melt the particle. It can also induce partial melting, which causes a collapse of the twin boundary structure in the solid part and transformation to single crystalline morphology. Under He irradiation, we observe a saturation of the vacancy concentration, but no untwinning.
Keywords
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