Journal
JOURNAL OF APPLIED PHYSICS
Volume 116, Issue 4, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4891448
Keywords
-
Categories
Funding
- Deutsche Forschungsgemeinschaft (DFG) [SCHA 632/20-1]
- state of Thuringia (TMWAT, BioMacroNano2020) [B715-10009]
Ask authors/readers for more resources
The solid-state dewetting of thin Au/Ni bilayers deposited onto SiO2/Si substrates is investigated. A rapid thermal treatment is used to induce the dewetting process by an increase in temperature. The evolution of the (111) peaks of X-ray diffraction reveals a characteristic change due to mixing of Au and Ni. At low temperature, the Au-Ni thin film is found to break up at the phase boundaries and growing voids are shown to be surrounded by a Ni-rich phase. Branch-like void growth is observed. Upon annealing at increasing temperatures, Au-Ni solid solutions are formed well above the bulk equilibrium solubility of Au and Ni. It is found that this metastable phase formation makes the Au-Ni thin film less vulnerable to rupturing. Moreover, growth mode of still evolving voids changes into a more regular, faceted one due to alloying. Finally, it is shown that annealing above the miscibility gap forms supersaturated, well-oriented Au-Ni solid solution agglomerates via dewetting. (C) 2014 AIP Publishing LLC.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available