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Phase formation between Ni thin films and GaAs substrate
In situ X-Ray Diffraction, X-Ray Reflectivity and High Resolution Transmission Electron Microscopy were used to investigate the sequence and the texture of phase formation during the solid-state reaction of Ni thin film with GaAs substrate. These results show the formation of a unique Ni3GaAs crysta...
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Published in: | Scripta materialia 2017-12, Vol.141, p.28-31 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | In situ X-Ray Diffraction, X-Ray Reflectivity and High Resolution Transmission Electron Microscopy were used to investigate the sequence and the texture of phase formation during the solid-state reaction of Ni thin film with GaAs substrate. These results show the formation of a unique Ni3GaAs crystalline phase at 200°C that remains stable until 400°C. The epitaxial relationships between this phase and the GaAs substrate were also evidenced. The formation of this unique phase, along with the variation of its lattice parameters when Ni is totally consumed, can be explained by local thermodynamic equilibrium and kinetics arguments.
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ISSN: | 1359-6462 1872-8456 |
DOI: | 10.1016/j.scriptamat.2017.07.011 |