2024
A potential mechanism for abnormal grain growth in Ni thin films on c-sapphire
Dominique Chatain, Blandine Courtois, Saba Ahmad, Gerhard Dehm, Christina Scheu, Clémence Badie, Lionel Santinacci
Acta Materialia 281:120451 (2024)10.1016/j.actamat.2024.120451
The role of microfaceting in heteroepitaxial interfaces
Dominique Chatain, Velimir Radmilovic, Paul Wynblatt, Ulrich Dahmen
Acta Materialia 276:120155 (2024)10.1016/j.actamat.2024.120155
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
Pushing the thickness limit of the giant Rashba effect in ferroelectric semiconductor GeTe
Boris Croes, Alexandre Llopez, Calvin Tagne-Kaegom, Bodry Tegomo Chiogo, Bertrand Kierren, Pierre Müller, Stefano Curiotto, Patrick Le Fèvre, François Bertran, Andrés Saúl, Yannick Fagot-Revurat, Frédéric Leroy, Fabien Cheynis
Nano Letters (2024)10.1021/acs.nanolett.4c03281
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
Surface thermomigration of 2D voids
Stefano Curiotto, Nicolas Combe, Pierre Müller, Ali El Barraj, Nayef Abu Dahech, Fabien Cheynis, Olivier Pierre-Louis, Frédéric Leroy
Applied Physics Letters 125:121601 (2024)10.1063/5.0228961
Decomposition and dewetting of super-saturated Cu-15 at. % Co solid solution film
Farnaz Farzam, Bárbara Bellón, Dominique Chatain, José A Jiménez, Benjamin Breitbach, Matteo Ghidelli, María Jazmin Duarte, Gerhard Dehm
Materials & Design 241:112892 (2024)10.1016/j.matdes.2024.112892
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
Van der Waals epitaxy of Weyl-semimetal Td-WTe2
Alexandre Llopez, Frédéric Leroy, Calvin Tagne-Kaegom, Boris Croes, Adrien Michon, Chiara Mastropasqua, Mohamed Al Khalfioui, Stefano Curiotto, Pierre Müller, Andrés Saúl, Bertrand Kierren, Geoffroy Kremer, Patrick Le Fèvre, François Bertran, Yannick Fagot-Revurat, Fabien Cheynis
ACS Applied Materials & Interfaces 16:20878-20885 (2024)10.1021/acsami.4c00676
Statistical and Correlative Characterization of Individual Nanoparticle in Gap Plasmon Resonator Sensors
Peeranuch Poungsripong, Vyshnav Kannampalli, Lionel Santinacci, David Grosso, Dominique Chatain, David Duché, Olivier Margeat, Beniamino Sciacca
Advanced Materials Technologies 202400083 (2024)10.1002/admt.202400083
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
Thermomechanic behavior of epitaxial GeTe ferroelectric films on Si(111)
Boris Croes, Fabien Cheynis, Michaël Texier, Pierre Müller, Stefano Curiotto, Frédéric Leroy
Journal of Applied Physics 134:204103 (2023)10.1063/5.0173718
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
Soft Template‐Based Synthesis of Mesoporous Phosphorus‐ and Boron‐Codoped NiFe‐Based Alloys for Efficient Oxygen Evolution Reaction
Yunqing Kang, Yanna Guo, Jingjing Zhao, Bo Jiang, Jingru Guo, Yi Tang, Hexing Li, Victor Malgras, Mohammed Amin, Hiroki Nara, Yoshiyuki Sugahara, Yusuke Yamauchi, Toru Asahi
Small 18 (2022)10.1002/smll.202203411
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
Heterostructuring Mesoporous 2D Iridium Nanosheets with Amorphous Nickel Boron Oxide Layers to Improve Electrolytic Water Splitting
Yunqing Kang, Bo Jiang, Victor Malgras, Yanna Guo, Ovidiu Cretu, Koji Kimoto, Aditya Ashok, Zhe Wan, Hexing Li, Yoshiyuki Sugahara, Yusuke Yamauchi, Toru Asahi
Small Methods 5 (2021)10.1002/smtd.202100679
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
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
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)
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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.