The formation of pentagonal Ni nanowires: dependence on the stretching direction and the temperature
| Autor: | P. García-Mochales, Pedro A. Serena, S. Peláez, R. Paredes |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Fusion
Materials science Condensed matter physics Crystal orientation Nanowire Physics::Optics chemistry.chemical_element Surfaces and Interfaces Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Crystallography Nickel Large peak chemistry Breakage Materials Chemistry Electrical and Electronic Engineering |
| Zdroj: | physica status solidi (a). 205:1317-1323 |
| ISSN: | 1862-6319 1862-6300 |
| DOI: | 10.1002/pssa.200778170 |
| Popis: | We have constructed computational minimum cross-section histograms that statistically unveil the presence of preferred configuration during the breakage of Ni nanowires. The computed histograras showed strong dependence on the nanowire stretching direction. For the [100] and [110] stretching directions we have observed a very large peak assoeiated to a minimum cross-section of 5 atoms. We have confirmed 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. |
| Databáze: | OpenAIRE |
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