The formation of pentagonal Ni nanowires: dependence on the stretching direction and the temperature

We have constructed computational minimum cross‐section histograms that statistically unveil the presence of preferred configuration during the breakage of Ni nanowires. The computed histograms showed strong dependence on the nanowire stretching direction. For the [100] and [110] stretching directio...

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Bibliographic Details
Published in:Physica status solidi. A, Applications and materials science Applications and materials science, 2008-06, Vol.205 (6), p.1317-1323
Main Authors: García-Mochales, P., Paredes, R., Peláez, S., Serena, P. A.
Format: Article
Language:English
Subjects:
02.70.Ns
61.46.Km
62.25.−g
73.40.Jn
73.63.Rt
Condensed matter: structure, mechanical and thermal properties
Exact sciences and technology
Mechanical and acoustical properties of condensed matter
Mechanical properties of nanoscale materials
Physics
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Summary:We have constructed computational minimum cross‐section histograms that statistically unveil the presence of preferred configuration during the breakage of Ni nanowires. The computed histograms showed strong dependence on the nanowire stretching direction. For the [100] and [110] stretching directions we have observed a very large peak associated to a minimum cross‐section of 5 atoms. We have confirmed that the configurations that contribute to this peak are staggered pentagonal nanowires. We have found that the formation of these nanowires is enhanced by increasing the temperature up to 550 K. At higher temperatures, the formation of pentagonal nanowires declines due to the competence against the nanowire melting processes. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
ISSN:1862-6300
0031-8965
1862-6319
DOI:10.1002/pssa.200778170