Crystallization of GST225 thin film induced by a single femtosecond laser pulse: Experimental and theoretical study
3
Publication type: Journal Article
Publication date: 2022-03-01
scimago Q1
wos Q2
SJR: 0.785
CiteScore: 8.4
Impact factor: 4.6
ISSN: 13698001, 18734081
Condensed Matter Physics
General Materials Science
Mechanical Engineering
Mechanics of Materials
Abstract
Amorphous to crystalline phase transition in Ge 2 Sb 2 Te 5 film under the influence of a single femtosecond laser pulse is studied. Two-dimensional temperature calculations and kinetic model for crystallization were used to support experimental results and then to explain the fast mechanism of crystallization. Based on comparison with the experimental data, the theoretical Time-Temperature-Transformation diagram was calculated, that allowed to define the range of cooling rates at which crystallization is possible. The distribution of crystalline fraction in the thin film was calculated using these rates. Reflectance of the simulated structures turned out to be in good agreement with experimental observations. • Crystallization with single femtosecond laser pulse in Ge 2 Sb 2 Te 5 films was observed. • TTT diagram was calculated to determine critical cooling rate for crystallization. • Purely thermal simulation reproduces the experimental data quite well.
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Citations from 2024:
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Kunkel T. et al. Crystallization of GST225 thin film induced by a single femtosecond laser pulse: Experimental and theoretical study // Materials Science in Semiconductor Processing. 2022. Vol. 139. p. 106350.
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Kunkel T., Vorobyov Y. V., Smayev M., Romashkin A., Lazarenko P. I., Kozyukhin S. A. Crystallization of GST225 thin film induced by a single femtosecond laser pulse: Experimental and theoretical study // Materials Science in Semiconductor Processing. 2022. Vol. 139. p. 106350.
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RIS
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TY - JOUR
DO - 10.1016/j.mssp.2021.106350
UR - https://doi.org/10.1016/j.mssp.2021.106350
TI - Crystallization of GST225 thin film induced by a single femtosecond laser pulse: Experimental and theoretical study
T2 - Materials Science in Semiconductor Processing
AU - Kunkel, Tatyana
AU - Vorobyov, Yuri V.
AU - Smayev, Mikhail
AU - Romashkin, Alexey
AU - Lazarenko, Petr I.
AU - Kozyukhin, Sergey A.
PY - 2022
DA - 2022/03/01
PB - Elsevier
SP - 106350
VL - 139
SN - 1369-8001
SN - 1873-4081
ER -
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BibTex (up to 50 authors)
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@article{2022_Kunkel,
author = {Tatyana Kunkel and Yuri V. Vorobyov and Mikhail Smayev and Alexey Romashkin and Petr I. Lazarenko and Sergey A. Kozyukhin},
title = {Crystallization of GST225 thin film induced by a single femtosecond laser pulse: Experimental and theoretical study},
journal = {Materials Science in Semiconductor Processing},
year = {2022},
volume = {139},
publisher = {Elsevier},
month = {mar},
url = {https://doi.org/10.1016/j.mssp.2021.106350},
pages = {106350},
doi = {10.1016/j.mssp.2021.106350}
}