| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vallet, Maxime
CentraleSupélec
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2024Ferroelectric texture of individual barium titanate nanocrystalscitations
- 2024Sub-millisecond electric field sensing with an individual rare-earth doped ferroelectric nanocrystal
- 2024Correlated IR-SEM-TEM studies of three different grains from Ryugu: From the initial material to post-accretional processescitations
- 2024Influence of arylalkyl amines on the formation of hybrid CsPbBr 3 nanocrystals via a modified LARP method
- 2024Silicon mediated twin formation in laser direct energy deposited 316L stainless steel ; Formation de macles médiées par le silicium dans l'acier inoxydable 316L fabriqué par dépôt d'énergie dirigé
- 2024Post-process lasering improves strength-ductility tradeoff and fatigue limit of additively manufactured stainless steels ; Le lasage post-processus améliore le compromis résistance-ductilité et la limite de fatigue des aciers inoxydables fabriqués de manière additive
- 2024Altering microstructure and enhancing mechanical properties during direct energy deposition of Ti-6Al-4V via in-process laser heat treatments ; Modification de la microstructure et amélioration des propriétés mécaniques lors du dépôt direct d'énergie de Ti-6Al-4V par des traitements thermiques au laser en cours de fabrication
- 2024Crystalline / glass nanoscale chemical separation induced by femtosecond laser pulses in aluminosilicate glasscitations
- 2023Liquid metal induced fracture : modelling and supporting experiments
- 2023Liquid metal induced fracture : modelling and supporting experiments
- 2023Heterogeneity in tribologically transformed structure (TTS) of Ti–6Al–4V under frettingcitations
- 2023Effect of the liquid metal on the plastic deformation and on the fracture of metallic alloys: copper and α-brasses in presence of In-Ga eutectic
- 2022Features of a nano-twist phase in the nanolayered Ti3AlC2 MAX phasecitations
- 2022Features of a nano-twist phase in the nanolayered Ti3AlC2 MAX phasecitations
- 2022Thermal and Electron Plasma Effects on Phase Separation Dynamics Induced by Ultrashort Laser Pulsescitations
- 2021Frank partial dislocation in Ti2AlC-MAX phase induced by matrix-Cu diffusioncitations
- 2020On the charge transport mechanisms in Ge-rich GeSbTe alloyscitations
- 2019Chemical phase segregation during the crystallization of Ge-rich GeSbTe alloyscitations
- 2018A universal mechanism to describe the III-V on Si growth by Molecular Beam Epitaxy
- 2018A universal mechanism to describe the III-V on Si growth by Molecular Beam Epitaxy
- 2017Second harmonic generation in gallium phosphide microdisks on silicon: from strict $bar{4}$ to random quasi-phase matchingcitations
- 2016Impact of crystal antiphase boundaries on second harmonic generation in GaP microdisks
- 2016X-ray Coherent Scattering on GaP/Si for III-V Monolithic Integration on Silicon
- 20163D GaP/Si(001) growth mode and antiphase boundaries
- 2014Enhancement of Photoacoustic Imaging Quality by Using cMUT Technology: Experimental Studycitations
- 2014In situ growth and coalescence of He-filled bi-dimensional defects in Si by H supplycitations
- 2014Étude des défauts bidimensionnels à base d'hélium dans le silicium - Application au transfert de films minces ; Study of helium-based planar defects in silicon - Application to the transfer of thin films
Places of action
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article
Thermal and Electron Plasma Effects on Phase Separation Dynamics Induced by Ultrashort Laser Pulses
Abstract
International audience ; During ultrafast laser-induced crystallization from glass with a non-congruent composition, a phase separation occurs. The morphology of the crystallized area, inside the heat-affected zone (HAZ), is spectacular showing a bouquet-like structure, under some specific conditions related to glass chemical composition and laser parameters. In this work, we investigate this HAZ along a written line through a set of high-resolution electron microscopy techniques to probe both the morphology and the chemical distribution at the nanoscale. Based on these findings, we demonstrate that the bouquet-like structure arises from poorly textured nanocrystals between two regions that have probably accumulated elastic strain. From that analysis, we also provide insights into the chemical separation process during this complex light-matter transformation in which the induced plasma structure guides the spatial distribution of SiO2 and LiNbO3. We suggest a model based on an electric field modulation produced by the inhomogeneous plasma electron trapping, that modifies the electrochemical potentials of the constituents.