2024
Polarization structure of nanostrip domain intersections in GeTe films
Boris Croes, Fabien Cheynis, Salia Cherifi Cherifi-Hertel, Kokou Dodzi Dorkenoo, Pierre Müller, Stefano Curiotto, Frédéric Leroy
Physical Review B 109:024103 (2024)10.1103/PhysRevB.109.024103
Rim nucleation and step-train orientation effects in SOI(111) dewetting
Stefano Curiotto, Pierre Müller, Fabien Cheynis, Igor Ozerov, Frédéric Leroy
Surfaces and Interfaces 45:103912 (2024)10.1016/j.surfin.2024.103912
Morphological evolution and structural study of annealed amorphous-Ge films: Interplay between crystallization and dewetting
Sonia Freddi, Gianfranco Sfuncia, Michele Gherardi, Giuseppe Nicotra, Chiara Barri, Luca Fagiani, Mohammed Bouabdellaoui, Alexey Fedorov, Stefano Sanguinetti, Dominique Chatain, Marco Abbarchi, Monica Bollani
Materials Science in Semiconductor Processing 174:108228 (2024)10.1016/j.mssp.2024.108228
2023
Early-stage growth of GeTe on Si(111)-Sb
Boris Croes, Fabien Cheynis, Yannick Fagot-Revurat, Pierre Müller, Stefano Curiotto, Frédéric Leroy
Physical Review Materials 7:014409 (2023)10.1103/PhysRevMaterials.7.014409
Size-dependent diffusion of 3D nanovoids in a bcc solid
Stefano Curiotto, Pierre Müller, Fabien Cheynis, Loic Corso, Elodie Bernard, Frédéric Leroy
Applied Physics Letters 123:241603 (2023)10.1063/5.0175752
2022
Polar surface of ferroelectric nanodomains in GeTe thin films
B. Croes, F. Cheynis, P. Müller, S. Curiotto, F. Leroy
Physical Review Materials 6:064407 (2022)10.1103/PhysRevMaterials.6.064407
Automatic Ferroelectric Domain Pattern Recognition Based on the Analysis of Localized Nonlinear Optical Responses Assisted by Machine Learning
Boris Croes, Iaroslav Gaponenko, Cédric Voulot, Olivier Grégut, Kokou D Dorkenoo, Fabien Cheynis, Stefano Curiotto, Pierre Müller, Frédéric Leroy, Kumara Cordero‐edwards, Patrycja Paruch, Salia Cherifi Cherifi-Hertel
Advanced Physics Research 2200037 (2022)10.1002/apxr.202200037
Reflections on the effect of an external flux in surface physics
Stefano Curiotto, F. Leroy, F. Cheynis, P. Müller
Surface Science : A Journal Devoted to the Physics and Chemistry of Interfaces 725:122158 (2022)10.1016/j.susc.2022.122158
Statistical behaviour of interfaces subjected to curvature flow and torque effects applied to microstructural evolutions
Sebastian Florez, Karen Alvarado, Brayan Murgas, Nathalie Bozzolo, Dominique Chatain, Carl E Krill, Mingyan Wang, Gregory S Rohrer, Marc Bernacki
Acta Materialia 222:117459 (2022)10.1016/j.actamat.2021.117459
Heteroepitaxy of FCC-on-FCC Systems of Large Misfit
Paul Wynblatt, Dominique Chatain, Ulrich Dahmen
Acta Materialia (2022)10.1016/j.actamat.2021.117550
2021
Surface segregation in multicomponent high entropy alloys: Atomistic simulations versus a multilayer analytical model
Dominique Chatain, Paul Wynblatt
Computational Materials Science 187:110101 (2021)10.1016/j.commatsci.2020.110101
Kinetic Monte Carlo simulations of the diffusion and shape evolution of single-layer clusters on a hexagonal lattice with and without external force
Stefano Curiotto, Pierre Müller, Fabien Cheynis, Frédéric Leroy
Applied Surface Science 552:149454 (2021)10.1016/j.apsusc.2021.149454
Mechanism of droplet motion and in-plane nanowire formation with and without electromigration
Stefano Curiotto, Pierre Müller, Fabien Cheynis, Frédéric Leroy
Applied Surface Science 579:152015 (2021)10.1016/j.apsusc.2021.152015
Nanocrystalline equiatomic CoCrFeNi alloy thin films: Are they single phase fcc?
Maya K Kini, Subin Lee, Alan Savan, Benjamin Breitbach, Younes Addab, Wenjun Lu, Matteo Ghidelli, Alfred Ludwig, Nathalie Bozzolo, Christina Scheu, Dominique Chatain, Gerhard Dehm
Surface and Coatings Technology 126945 (2021)10.1016/j.surfcoat.2021.126945
Structure and hardness of in situ synthesized nano-oxide strengthened CoCrFeNi high entropy alloy thin films
Subin Lee, Dominique Chatain, Christian Liebscher, Gerhard Dehm
Scripta Materialia 203:114044 (2021)10.1016/j.scriptamat.2021.114044
2020
Microstructure evolution and thermal stability of equiatomic CoCrFeNi films on (0001) alpha-Al2O3
Younès Addab, Maya K Kini, Blandine Courtois, Alan Savan, Alfred Ludwig, Nathalie Bozzolo, Christina Scheu, Gerhard Dehm, Dominique Chatain
Acta Materialia 200:908-921 (2020)10.1016/j.actamat.2020.09.064
Influence of step structure on preferred orientation relationships of Ag deposited on Ni(111)
Dominique Chatain, Saransh Singh, Blandine Courtois, Jérémie Silvent, Elodie Verzeroli, Gregory S Rohrer, Marc de Graef, Paul Wynblatt
Acta Materialia 200:287-296 (2020)10.1016/j.actamat.2020.08.082
2D Manipulation of Nanoobjects by Perpendicular Electric Fields: Implications for Nanofabrication
Stefano Curiotto, F. Cheynis, Pierre Müller, Frédéric Leroy
ACS Applied Nano Materials 3:1118-1122 (2020)10.1021/acsanm.9b02517
Dynamics of Au-Ge liquid droplets on Ge(1 1 1) terraces: Nucleation, growth and dynamic coalescence
Ali El-Barraj, Stefano Curiotto, Fabien Cheynis, Pierre Müller, Frédéric Leroy
Applied Surface Science 509:144667 (2020)10.1016/j.apsusc.2019.144667
Electric forces on a confined advacancy island
Frédéric Leroy, Ali El-Barraj, Fabien Cheynis, Pierre Müller, Stefano Curiotto
Physical Review B 102 (2020)10.1103/PhysRevB.102.235412
Kinetics and coupled dynamics of dewetting and chemical reaction in Si/SiO2/Si system
Frédéric Leroy, D Landru, Fabien Cheynis, O Kononchuk, Pierre Müller, Stefano Curiotto
Journal of Materials Science (2020)10.1007/s10853-020-05161-w
Nanomateriaux Structure, morphologie et stabilite
Pierre Müller
Techniques de l’Ingénieur. Techniques d'Analyse NM3010 (2020)
Propriétés des nano-objets: Longueurs critiques, effets de taille et de forme
Pierre Müller
Techniques de l’Ingénieur. Techniques d'Analyse (2020)
2019
Growth and orientation relationships of Ni and Cu films annealed on slightly miscut (1-102) r-sapphire substrates
Dominique Chatain, Blandine Courtois, Igor Ozerov, Nathalie Bozzolo, Madeleine Kelly, Gregory S Rohrer, Paul Wynblatt
Journal of Crystal Growth 508:24-33 (2019)10.1016/j.jcrysgro.2018.11.024
2D nanostructure motion on anisotropic surfaces controlled by electromigration
Stefano Curiotto, Pierre Müller, Ali El-Barraj, Fabien Cheynis, Olivier Pierre-Louis, Frédéric Leroy
Applied Surface Science 469:463-470 (2019)10.1016/j.apsusc.2018.11.049
On pinning-depinning and microkink-flow in solid state dewetting: Insights by in-situ ESEM on Al thin films
Stefan Werner Hieke, Marc-Georg Willinger, Zhu-Jun Wang, Günther H.S. Richter, Dominique Chatain, Gerhard Dehm, Christina Scheu
Acta Materialia 165:153-163 (2019)10.1016/j.actamat.2018.11.028
Atomic Transport in Au-Ge Droplets: Brownian and Electromigration Dynamics
Frédéric Leroy, Ali El-Barraj, Pierre Müller, Fabien Cheynis, Stefano Curiotto
Physical Review Letters (2019)
Origin of an unusual systematic variation in the heteroepitaxy of Ag on Ni-the roles of twinning and step alignment
P. Wynblatt, Dominique Chatain, A D Rollett, U. Dahmen
Acta Materialia 168:121-132 (2019)10.1016/j.actamat.2019.01.049
Modeling grain boundary and surface segregation in multicomponent high-entropy alloys
Paul Wynblatt, Dominique Chatain
Physical Review Materials 3 (2019)10.1103/PhysRevMaterials.3.054004
2017
Dewetting of patterned solid films: Towards a predictive modelling approach
M. Trautmann, F. Cheynis, F. Leroy, S. Curiotto, O. Pierre-Louis, Pierre Müller
Applied Physics Letters 110:263105 (2017)10.1063/1.4990005
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ANR AHEAD (Analysis of High Entropy Alloy Dewetting)
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ANR GIBBS (Grain Interface) Boundaries: Behaviour and Segregation)
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ESA (European Space Agency) LIPHASE (Liquid Phase Separation in Metallic Alloys)
e-PICS
This is a Platform for in-situ ultra-high-vacuum (UHV) studies of the Chemistry and Structure of materials by means of a multiple-use electron-beam-based analysis probe.
A UHV electron gun (Orsay-Physics) has been mounted in a UHV chamber equiped with various electron analyzers:
- secondary electron detector for imaging (Orsay-Physics)
- Auger spectrometer for surface chemistry analysis (STAIB)
- Back Scattered Electron Diffraction Pattern camera for structure and orientation imaging (OXFORD instruments)
Samples can be prepared in a separate chamber and transfered through UHV to a heating x-y-z-rotation stage in the main chamber.
Sample preparation
- Sputter-cleaning by Ar+ ions
- In-situ PVD (from different sources inside the main chamber)
Phase and morphological change characterization
- In-situ heating (up to 1050 K)
Data acquisition and processing
- Imaging by secondary electrons with a resolution of 10 nm at 25 kV
- Surface chemistry (by Auger electron spectroscopy) resolution 80 microns (mapping with a resolution better than 1 micron in 2019)
- Mapping of 3D structure and orientation (EBSD) with a resolution of 30-50 nm
- Other measurements can be performed (in principle) by adding new sensors/connections.
FOX
Furnace equipped with an air-proof alumina tube for annealing samples under gas mixtures at controlled OXygen partial pressure (PO2). Windows fitted to the ends of the furnace tube allow observation of sample shape changes as a function of temperature and PO2 for melting point and wetting measurements.
Sample preparation
- Annealing in gas mixtures (Ar, O2, H2, CO2) up to 1250°C
- Switchable alumina tube dedicated to each material (for avoiding contamination).
Data acquisition
- Thermal cycle monitoring and melting point measurement
- Optical observation of sample profiles or sessile drops using a camera-monitor system with acquisition and/or printing of images.
CINAM
- NM (L. Michez, L. Santinacci)
- TSN (C. Varvenne)
National
- Ecoles des Mines-Paritech (Sophia-Antipolis, Saint Etienne)
- IMN (Institut des Matériaux de Nantes)
International
- Carnegie Mellon University (Pittsburgh, USA)
- MPIE, Max Planck Institute fur Eisenforschung (Dusseldorf, Germany)
Industry
- Orsay Physics (Rousset)
- Oxford Instrument (Cambridge, GB)
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Growth process of thin single-crystal films on sapphire wafer
069 // STEPPHIRE - Réf/CNRS : DI11692-01 - Réf/AMU : 18D051 - Dépôt de la demande de brevet européen.