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Number of documents

57

Curriculum Vitae


Introduction

My research is focused on nanoscience and on the use of new in situ and real time experimental methods based on Low Energy Electron Microscopy and X-ray Scattering (synchrotron radiation). The goal is to study out-of-equilibrium surface phenomena at the nanometer scale. For the past 15 years, I have developed the use of in situ Grazing Incidence Small Angle X-ray Scattering to study in Fourier space in particular the self-organization of nanosize clusters and the growth of dendritic facetted structures formed during the dewetting of an unstable thin solid film. For the past 7 years, in situ Low Energy Electron Microscopy have been dedicated to surface modification studies on structural and morphological properties induced by a thermal, a chemical or an electrical stress. This research activity is mainly focused on out-of-equilibrium phenomena, e.g. the solid-solid-vapor triple line dynamics, and on the development of a setup based on holography with low energy electrons.

Research carreer

1-Mobility
After engineering studies in Physics (Grenoble Institute of Technology) then "Agrégation de Physique", I have done a PhD at CEA-Grenoble (2001-2004) under the supervision of Gilles Renaud and Jean-René Régnard. Title: « Small Angle X-ray Scattering applied to the in situ growth of nanostructures: towards self-organized growth».

2004-2005 Post-doctoral position at the Max-Planck for Solid State physics (Stuttgart; resp. K. Kern) on growth and characterization of two dimensionnal organometallic layers (Scanning Tunneling Microscopy).

From 2005 to 2016 I was Associate Professor (Habilitation, 2013) at Aix-Marseille University. My research was done at the Interdisciplinary Center for Nanoscience of Marseille (CINaM, dir. Frédéric Fagès).

Since 2016 I am full professor. My research is dedicated to studies on "structure and dynamics of surfaces".

2-Responsabilities

2018-today

- Co-Head of NanoMaterials Department of CINaM (30 permanent position).

2015-2017

- Head of NanoMaterials and Reactivity Department of CINaM (20 permanent position).
- Member of directory board of CINaM
(5 department heads and lab director).

2015-2019: National coordinator of  ANR project HOLOLEEM. Holographic Low Energy Electron Microscopy (220 k€).

2013-2017: Member of ANR Project LOTUS. Triple line dynamics, solid-solid-vaccum (500 k€). Coordination of experiments on the triple line dynamics occuring with a chemical reaction.

2009-2015: Member of the scientific comittee (review panel) of synchrotron SOLEIL. Electronic and magnetic properties / surfaces et interfaces.

March 2015: Co-organisator of conference Surface Science Symp., Les Arcs, Fr.

2009-2011: National Coordinator of ANR P-NANO project DEFIS. Solid state dewetting (800 k€).

2009-2011: CNRS "delegation" Research project: Thin film dewetting (solid state) by Low Energy Electron Microscopy.

2008-2011: Elected member of Material Science departement of Université Aix-Marseille 3, Marseille.

2009-2011: Elected member of CINaM, UMR 7325.

2011: Member of selection committee "Maître de Conférence" N◦0342 (Univ. Aix-Marseille 3).

2005-2008: Member of ANR P-NANO project Nanomorphogénèse.

Juillet 2008: Co-organisator of summer school NanoSteps, Centre CNRS, Cargese, Corse.

2008: Member of selection committee "Maître de Conférence" N◦0568S publié en 28ème section, Univ. Aix-Marseille 2.

2008: Member of selection committee "

 

3-Teaching responsabilities

2016-today: Responsible for L2 Physics at AMU

2017-today: Elected member of Physics Department (200 physicists) of UFR Sciences

 


Journal articles51 documents

  • Stefano Curiotto, Pierre Müller, Fabien Cheynis, Frédéric Leroy. Kinetic Monte Carlo simulations of the diffusion and shape evolution of single-layer clusters on a hexagonal lattice with and without external force. Applied Surface Science, Elsevier, 2021, 552, pp.149454. ⟨10.1016/j.apsusc.2021.149454⟩. ⟨hal-03168149⟩
  • Frédéric Leroy, D Landru, Fabien Cheynis, O Kononchuk, Pierre Müller, et al.. Kinetics and coupled dynamics of dewetting and chemical reaction in Si/SiO2/Si system. Journal of Materials Science, Springer Verlag, 2020, ⟨10.1007/s10853-020-05161-w⟩. ⟨hal-03025140⟩
  • Frédéric Leroy, Ali El-Barraj, Fabien Cheynis, Pierre Müller, Stefano Curiotto. Electric forces on a confined advacancy island. Physical Review B, American Physical Society, 2020, 102 (23), ⟨10.1103/PhysRevB.102.235412⟩. ⟨hal-02569097v2⟩
  • Hadi Hijazi, Frédéric Leroy, Guillaume Monier, Gabin Grégoire, Evelyne Gil, et al.. Dynamics of Gold Droplet Formation on SiO 2 /Si(111) Surface. Journal of Physical Chemistry C, American Chemical Society, 2020, 124 (22), pp.11946-11951. ⟨10.1021/acs.jpcc.0c02378⟩. ⟨hal-02992036⟩
  • Ali El-Barraj, Stefano Curiotto, Fabien Cheynis, Pierre Müller, Frédéric Leroy. Dynamics of Au-Ge liquid droplets on Ge(1 1 1) terraces: Nucleation, growth and dynamic coalescence. Applied Surface Science, Elsevier, 2020, 509, pp.144667. ⟨10.1016/j.apsusc.2019.144667⟩. ⟨hal-02979162⟩
  • Frédéric Leroy, Ali El-Barraj, Pierre Müller, Fabien Cheynis, Stefano Curiotto. Atomic Transport in Au-Ge Droplets: Brownian and Electromigration Dynamics. Physical Review Letters, American Physical Society, In press. ⟨hal-02319455⟩
  • J. Lebenberg, M. Labit, G. Auzias, H. Mohlberg, C. Fischer, et al.. A framework based on sulcal constraints to align preterm, infant and adult human brain images acquired in vivo and post mortem. Brain Structure and Function, Springer Verlag, 2018, 223 (9), pp.4153-4168. ⟨10.1007/s00429-018-1735-9⟩. ⟨hal-02005978⟩
  • M. Trautmann, F. Cheynis, F. Leroy, S. Curiotto, O. Pierre-Louis, et al.. Dewetting of patterned solid films: Towards a predictive modelling approach. Applied Physics Letters, American Institute of Physics, 2017, 110 (26), pp.263105. ⟨10.1063/1.4990005⟩. ⟨hal-01617089⟩
  • M. Trautmann, F. Cheynis, F. Leroy, S. Curiotto, Pierre Müller. Interplay between deoxidation and dewetting for ultrathin SOI films. Applied Physics Letters, American Institute of Physics, 2017, 110 (16), pp.161601. ⟨10.1063/1.4980132⟩. ⟨hal-01617080⟩
  • S. Curiotto, F. Cheynis, F. Leroy, Pierre Müller. Surface diffusion of Au on root 3 x root 3 Si(111)-Au studied by nucleation-rate and Ostwald-ripening analysis. Surface Science, Elsevier, 2016, 647, pp.8-11. ⟨10.1016/j.susc.2015.11.015⟩. ⟨hal-01455008⟩
  • F. Leroy, T. Passanante, F. Cheynis, S. Curiotto, E. B. Bussmann, et al.. Catalytically enhanced thermal decomposition of chemically grown silicon oxide layers on Si(001). Applied Physics Letters, American Institute of Physics, 2016, 108 (11), pp.111601. ⟨10.1063/1.4941799⟩. ⟨hal-01455015⟩
  • F. Leroy, Y. Garreau, F. Cheynis, B. Croset, A. Coati, et al.. Elastic cost of silicon step rebonding. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2016, 93 (4), pp.045416. ⟨10.1103/PhysRevB.93.045416⟩. ⟨hal-01438500⟩
  • F. Leroy, L. Borowik, F. Cheynis, Y. Almadori, S. Curiotto, et al.. How to control solid state dewetting: A short review. Surface Science Reports, Elsevier, 2016, 71 (2), pp.391-409. ⟨10.1016/j.surfrep.2016.03.002⟩. ⟨hal-01454999⟩
  • S. Curiotto, F. Leroy, F. Cheynis, Pierre Müller. In-plane Si nanowire growthmechanis in absence of external Si flux. Nano Letters, American Chemical Society, 2015, 15 (7), pp.4788-4792. ⟨hal-01176901⟩
  • F. Leroy, Y. Saito, S. Curiotto, F. Cheynis, Olivier Pierre-Louis, et al.. Shape transition in nano-pits after solid-phase etching of SiO2 by Si islands. Applied Physics Letters, American Institute of Physics, 2015, 106, pp.191601. ⟨10.1063/1.4921091⟩. ⟨hal-01151207⟩
  • S. Curiotto, F. Leroy, F. Cheynis, Pierre Müller. Self propelled motion of Au-Si droplets on Si(111) mediated by monoatomic step dissolution. Surface Science, Elsevier, 2015, 632, pp.1-8. ⟨hal-01067979⟩
  • S. Curiotto, F. Leroy, F. Cheynis, Pierre Müller. Oxygen-induced inhibition of silicon-on-insulator dewetting. Applied Physics Letters, American Institute of Physics, 2014, 104, pp.061603. ⟨hal-00975055⟩
  • F. Cheynis, F. Leroy, A. Ranguis, B. Detailleur, P. Bindzi, et al.. Combining Low-Energy Electron Microscopy and Scanning Probe Microscopy techniques for Surface Science : development of a novel sample-holder. Review of Scientific Instruments, American Institute of Physics, 2014, 85, pp.043705. ⟨hal-00992919⟩
  • F. Leroy, Y. Saito, F. Cheynis, E. Bussmann, O. Pierre-Louis, et al.. Non equilibrium diffusion of reactive solid islands. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2014, 89, pp.235406. ⟨10.1103/PhysRevB.89.235406⟩. ⟨hal-01021099⟩
  • Pierre Müller, A. Saul, F. Leroy. Simple views on surface stress and surface energy concepts. Advances in Natural Sciences : Nanoscience and Nanotechnology, IOP Publishing, 2014, 5, pp.013002. ⟨hal-00919575⟩
  • F. Leroy, F. Cheynis, T. Passanante, Pierre Müller. Influence of facets on solid state dewetting mechanisms: Comparison between Ge and Si on SiO2. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2013, 88 (3), pp.035306. ⟨hal-00914731⟩
  • F. Cheynis, Frédéric Leroy, Pierre Müller. Dynamics and instability of solid-state dewetting. Comptes Rendus Physique, Centre Mersenne, 2013, 14, pp.578-589. ⟨hal-00914737⟩
  • F. Cheynis, Frédéric Leroy, T. Passanante, Pierre Müller. Agglomeration dynamics of germanium islands on a silicon oxide substrate: A grazing incidence small-angle x-ray scattering study. Applied Physics Letters, American Institute of Physics, 2013, 102, pp.161603. ⟨hal-00843737⟩
  • R. Bernard, T. Leoni, A. Wilson, T. Lelaidier, H. Sahaf, et al.. Growth of Si ultrathin films on silver surfaces: Evidence of an Ag(110) reconstruction induced by Si. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2013, 88 (12), pp.121411. ⟨10.1103/PhysRevB.88.121411⟩. ⟨hal-00914746⟩
  • Frédéric Leroy, F. Cheynis, T. Passanante, Pierre Müller. Dynamics, anisotropy and stability of silicon-on-insulator dewetting fronts. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2012, 85, pp.195414. ⟨hal-00698899⟩
  • F. Cheynis, E. Bussmann, F. Leroy, T. Passanante, Pierre Müller. Stress effects on solid-state dewetting of nano-thin films. International Journal of Nanotechnology, Inderscience, 2012, 9, pp.396-411. ⟨hal-00696849⟩
  • G. Sitja, M. Marsault, F. Leroy, S. Le Moal, C.R. Henry. Regular arrays of palladium and palladium-gold clusters supported on alumina ultrathinfilms: stability under oxygen. International Journal of Nanotechnology, Inderscience, 2012, 9, pp.567-575. ⟨hal-00992921⟩
  • J. Boulenguez, Serge Berthier, F. Leroy. Multiple scaled disorder in the photonic structure of Morpho rhetenor butterfly. Applied physics. A, Materials science & processing, Springer Verlag, 2012, 106 (4), pp.1005-1011. ⟨10.1007/s00339-011-6728-y⟩. ⟨hal-01236766⟩
  • F. Cheynis, E. Bussmann, F. Leroy, T. Passanante, Pierre Müller. Dewetting dynamics of silicon-on-insulator thin films. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2011, 84, pp.245439. ⟨hal-00696832⟩
  • E. Bussmann, F. Cheynis, F. Leroy, Pierre Müller, O. Pierre-Louis. Dynamics of solid thin-film dewetting in the silicon-on-insulator system. New Journal of Physics, Institute of Physics: Open Access Journals, 2011, 13, pp.043017. ⟨hal-00603256⟩
  • S. Stepanow, R. Ohmann, F. Leroy, N. Lin, T. Strunskus, et al.. Rational Design of Two-Dimensional Nanoscale Networks by Electrostatic Interactions at Surfaces. ACS Nano, American Chemical Society, 2010, 4, pp.1813-1820. ⟨hal-00523849⟩
  • Gilles Renaud, Rémi Lazzari, Frédéric Leroy. Probing surface and interface morphology with Grazing Incidence Small Angle X-Ray Scattering. Surface Science Reports, Elsevier, 2009, 64 (8), pp.255 - 380. ⟨10.1016/j.surfrep.2009.07.002⟩. ⟨hal-01442842⟩
  • Frédéric Leroy, D. Karashanova, M. Dufay, J.M. Debiere, T. Frisch, et al.. Step bunching to step-meandering transition induced by electromigration on Si(111) vicinal surface. Surface Science, Elsevier, 2009, 603, pp.507-512. ⟨hal-00386919⟩
  • G. Renaud, Rémi Lazzari, F. Leroy. Probing surfaces and interfaces morphology with Grazing Incidence Small Angle X-Ray Scattering. Surface Science Reports, Elsevier, 2009, 64 (8), pp.255-380. ⟨hal-00440716⟩
  • D. Karashanova, J.J. Métois, F. Leroy, Pierre Müller. Is it possible to use external stress to tune silicon surface morphology ?. Materials Science in Semiconductor Processing, Elsevier, 2009, 12, pp.12-15. ⟨hal-00475815⟩
  • F. Leroy, D. Karashanova, M. Dufay, J.-M. Debierre, T. Frisch, et al.. Step bunching to step-meandering transition induced by electromigration on Si(111) vicinal surface. Surface Science, Elsevier, 2009, 603 (3), pp.507 - 512. ⟨10.1016/j.susc.2008.12.016⟩. ⟨hal-01900752⟩
  • Frédéric Leroy, Gilles Renaud, Antoine Létoublon, Rémi Lazzari. Growth of Co on Au(111) studied by multiwavelength anomalous grazing-incidence small-angle x-ray scattering: From ordered nanostructures to percolated thin films and nanopillars. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2008, 77 (23), pp.235429. ⟨10.1103/PhysRevB.77.235429⟩. ⟨hal-01442851⟩
  • Rémi Lazzari, Gilles Renaud, Jacques Jupille, Frédéric Leroy. Self-similarity during growth of the Au ∕ Ti O 2 ( 110 ) model catalyst as seen by the scattering of x-rays at grazing-angle incidence. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2008, 76 (12), ⟨10.1103/PhysRevB.76.125412⟩. ⟨hal-01442853⟩
  • Frédéric Leroy, Pierre Müller. External field as a tool for measuring absolute values of step-step interaction. Surface Science, Elsevier, 2008, 602, pp.126-132. ⟨hal-00303807⟩
  • F. Leroy, Pierre Müller, J. Métois, O. Pierre-Louis. Vicinal silicon surfaces: From step density wave to faceting. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2007, 76 (4), pp.045402. ⟨10.1103/PhysRevB.76.045402⟩. ⟨hal-01900746⟩
  • F. Leroy, Pierre Müller, J.J. Metois, O. Pierre-Louis. Vicinal silicon surfaces : from step density wave to faceting. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2007, 76, pp.045402. ⟨hal-00165327⟩
  • C. Revenant, F. Leroy, G. Renaud, R. Lazzari, A. Létoublon, et al.. Structural and morphological evolution of Co on faceted Pt/W(111) surface upon thermal annealing. Surface Science, Elsevier, 2007, 601 (16), pp.3431-3449. ⟨10.1016/j.susc.2007.06.026⟩. ⟨hal-01442856⟩
  • Frédéric Leroy, Rémi Lazzari, Gilles Renaud. X-ray scattering from stepped and kinked surfaces: An approach with the paracrystal model. Surface Science, Elsevier, 2007, 601 (9), pp.1915 - 1929. ⟨10.1016/j.susc.2007.02.020⟩. ⟨hal-01442857⟩
  • Rémi Lazzari, Frédéric Leroy, Gilles Renaud. Grazing-incidence small-angle x-ray scattering from dense packing of islands on surfaces: Development of distorted wave Born approximation and correlation between particle sizes and spacing. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2006, 76 (12), ⟨10.1103/PhysRevB.76.125411⟩. ⟨hal-01442854⟩
  • F. Leroy, G. Renaud, A. Létoublon, R. Lazzari, C. Mottet, et al.. Self-Organized Growth of Nanoparticles on a Surface Patterned by a Buried Dislocation Network. Physical Review Letters, American Physical Society, 2005, 95 (18), pp.185501. ⟨10.1103/PhysRevLett.95.185501⟩. ⟨hal-01442861⟩
  • C. Revenant, F. Leroy, Rémi Lazzari, G. Renaud, C.R. Henry. Quantitative analysis of grazing incidence small-angle x-ray scattering: Pd/MgO(001) growth. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2004, 69 (3), pp.035411. ⟨10.1103/PhysRevB.69.035411⟩. ⟨hal-00004982⟩
  • F. Leroy, Rémi Lazzari, G. Renaud. Effects of near-neighbor correlations on the diffuse scattering from a one-dimensional paracrystal. Acta Crystallographica Section A Foundations and Advances, International Union of Crystallography, 2004, 60 (6), pp.565. ⟨hal-00004448⟩
  • F. Leroy, C. Revenant, G. Renaud, R. Lazzari. In situ GISAXS study of the growth of Pd on MgO(001). Applied Surface Science, Elsevier, 2004, 238 (1-4), pp.233 - 237. ⟨10.1016/j.apsusc.2004.05.235⟩. ⟨hal-01442911⟩
  • C. Revenant, F. Leroy, R. Lazzari, G. Renaud, C. Henry. Quantitative analysis of nanoripple and nanoparticle patterns by grazing incidence small-angle x-ray scattering 3D mapping. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2004, 85 (23), ⟨10.1103/PhysRevB.85.235415⟩. ⟨hal-01442869⟩
  • Frédéric Leroy, Rémi Lazzari, Gilles Renaud. Effects of near-neighbor correlations on the diffuse scattering from a one-dimensional paracrystal. Acta Crystallographica Section a Foundations of Crystallography, Wiley-Blackwell, 2004, 60 (6), pp.565 - 581. ⟨10.1107/S0108767304018550⟩. ⟨hal-01442865⟩
  • G. Renaud, Rémi Lazzari, Christine Revenant, Antoine Barbier, Marion Noblet, et al.. Real-Time Monitoring of Growing Nanoparticles. Science, American Association for the Advancement of Science, 2003, 300 (5624), pp.1416 - 1419. ⟨10.1126/science.1082146⟩. ⟨hal-01442871⟩

Books2 documents

  • Pierre Müller, Frédéric Leroy. Nanosciences et nanomatériaux: rappels de cours et apprentissage par exercices corrigés. Ellipse. 2018, 9782340027114. ⟨hal-03033060⟩
  • Pierre Müller, Frédéric Leroy. Nanosciences et Nanomatériaux: rappels de cours et apprentissage par exercices corrigés. 2018. ⟨hal-02004989⟩

Patents2 documents

  • Łukasz Borowik, J.C Barbé, E. Bussmann, Fabien Cheynis, Frédéric Leroy, et al.. Method for making semi-conductor nanocrystals. United States, Patent n° : US2012282758. 2012. ⟨hal-01939829⟩
  • Łukasz Borowik, J.C Barbé, E. Bussmann, Fabien Cheynis, Frédéric Leroy, et al.. Method for making semi-conductor nanocrystals oriented along a predefined direction. United States, Patent n° : US2012282759. 2012. ⟨hal-01939834⟩

Other publications1 document

  • Frédéric Leroy, Pierre Müller. Nanosciences et nanomatériaux Rappels de cours et apprentissage par exercices corrigés. 2018. ⟨hal-02480740⟩

Habilitation à diriger des recherches1 document

  • Frédéric Leroy. Dynamique hors-équilibre : Quelques exemples en physique des surfaces. Science des matériaux [cond-mat.mtrl-sci]. Aix-Marseille Université, 2013. ⟨tel-00958344⟩