Abstract
We present the results of a rigorous investigation of contact melting in thin Ag/Ge bilayers fulfilled via ex-situ TEM techniques based on tracing the abrupt changes of sample morphology and structure at melting. It has been revealed that the liquid-phase formation in the system at the eutectic temperature takes place only if the silver film mass thickness value is greater than the critical one (≈1.2 nm), which corresponds to ≈8 nm-sized Ag nanoparticles. The onset temperature of liquid nuclei formation at the metal-semiconductor interface was estimated to be 200 °C.
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Acknowledgements
This work was supported by the Ministry of Education and Science of Ukraine (0119U101787, 0118U002027) and the National Science Centre, Poland (project No. 2016/23/B/ST8/00537).
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Minenkov, A., Kryshtal, A., Bogatyrenko, S. (2020). Contact Melting in Ag/Ge Layered Nanofilms: Critical Thickness and Onset Temperature. In: Pogrebnjak, A., Bondar, O. (eds) Microstructure and Properties of Micro- and Nanoscale Materials, Films, and Coatings (NAP 2019). Springer Proceedings in Physics, vol 240. Springer, Singapore. https://doi.org/10.1007/978-981-15-1742-6_27
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DOI: https://doi.org/10.1007/978-981-15-1742-6_27
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