Laser-induced modification and formation of periodic surface structures (ripples) of amorphous GST225 phase change materials
Sergey Kozyukhin
1
,
Yuri V. Vorobyov
3
,
Mikhail Smayev
5, 6
,
Alexey Sherchenkov
2
,
Yuliya Sybina
2
,
Alexander Polohin
2
,
Vladimir Sigaev
6
Publication type: Journal Article
Publication date: 2019-05-01
scimago Q1
wos Q1
SJR: 1.000
CiteScore: 9.2
Impact factor: 5.0
ISSN: 00303992, 18792545
Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering
Abstract
Abstract In this paper, we have studied the crystallization behavior of amorphous Ge2Sb2Te5 thin films upon irradiation with femtosecond laser pulses. Crystalline and melt-quenched amorphous regions were produced by exposure to laser multipulses, and were characterized by the optical microscopy and by the micro-Raman spectroscopy. Using irradiation with single laser pulses of varying fluence it was verified that crystallization was not possible, requiring minimum ten pulses for triggering partial crystallization. We obtained laser-induced periodic surface structures in the form of near-subwavelength ripples of two types with different periods. It was found that the fraction of the crystalline phase is higher in the ridges of the ripples compared to the valleys. We used the model of heterogeneous crystallization for bodies with different curvatures of the boundary surface to explain the observed effect of the phase transformation in laser-induced periodic surface structures.
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Total citations:
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Citations from 2024:
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GOST
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Kozyukhin S. et al. Laser-induced modification and formation of periodic surface structures (ripples) of amorphous GST225 phase change materials // Optics and Laser Technology. 2019. Vol. 113. pp. 87-94.
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Kozyukhin S., Lazarenko P. I., Vorobyov Y. V., Baranchikov A. E., Glukhenkaya V. B., Smayev M., Sherchenkov A., Sybina Y., Polohin A., Sigaev V. Laser-induced modification and formation of periodic surface structures (ripples) of amorphous GST225 phase change materials // Optics and Laser Technology. 2019. Vol. 113. pp. 87-94.
Cite this
RIS
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TY - JOUR
DO - 10.1016/j.optlastec.2018.12.017
UR - https://linkinghub.elsevier.com/retrieve/pii/S0030399218313434
TI - Laser-induced modification and formation of periodic surface structures (ripples) of amorphous GST225 phase change materials
T2 - Optics and Laser Technology
AU - Kozyukhin, Sergey
AU - Lazarenko, Petr I.
AU - Vorobyov, Yuri V.
AU - Baranchikov, Alexander E
AU - Glukhenkaya, Victoria B.
AU - Smayev, Mikhail
AU - Sherchenkov, Alexey
AU - Sybina, Yuliya
AU - Polohin, Alexander
AU - Sigaev, Vladimir
PY - 2019
DA - 2019/05/01
PB - Elsevier
SP - 87-94
VL - 113
SN - 0030-3992
SN - 1879-2545
ER -
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BibTex (up to 50 authors)
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@article{2019_Kozyukhin,
author = {Sergey Kozyukhin and Petr I. Lazarenko and Yuri V. Vorobyov and Alexander E Baranchikov and Victoria B. Glukhenkaya and Mikhail Smayev and Alexey Sherchenkov and Yuliya Sybina and Alexander Polohin and Vladimir Sigaev},
title = {Laser-induced modification and formation of periodic surface structures (ripples) of amorphous GST225 phase change materials},
journal = {Optics and Laser Technology},
year = {2019},
volume = {113},
publisher = {Elsevier},
month = {may},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0030399218313434},
pages = {87--94},
doi = {10.1016/j.optlastec.2018.12.017}
}