Christophe LEFEVRE

Christophe LEFEVRE

Chargé de Recherche, Chimie des Matériaux Inorganiques (DCMI)Christophe.Lefevre@ipcms.unistra.fr
Tél: +33(0)3 88 10 71 28Bureau: 2008

Parcours de recherche

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CNRS 2008-2022 : Chargé de Recherche (CRCN) au CNRS
2022 – : Directeur de Recherche 2eme Classe au CNRS
EWHA 08/2012-07/2013 : Professeur invité Université d’Ewha (Seoul / Corée du Sud)
CEA 2007-2008 : Stage post-doctoral au CEA (centre de Valduc) : “Propriétés structurales d’actinides sous hautes pressions statiques et hautes températures”
MPI 2004-2007 : Stage post-doctoral au Max Planck Institut (Stuttgart) : “Propriétés structurales et magnétiques des composés \(R_2T_2X\) (R = La-Lu, Y ; T = Fe, Co ; X = Br, I)”

Parcours universitaire

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UdS 2014 : Habilitation à Diriger les Recherches (Univ. Strasbourg). “Relation structure-propriétés de différents oxydes pour l’électronique de spin”
Jury :
Jean-Marc Grenèche (Président), IMMM (Le Mans)
Philippe Taihades (Rapporteur), CIRIMAT (Toulouse)
Josep Foncuberta (Rapporteur), ICAMB (Barcelone)
Wilfrid Prellier (Rapporteur), CRISMAT (Caen)
Vincent Favre-Nicolin (Examinateur), CEA (Grenoble)
Geneviève Pourroy (Examinateur), IPCMS (Strasbourg)
Nathalie Viart (Garante), IPCMS (Strasbourg)
UHP 2001-2004 : Thèse de doctorat (Univ. Henri Poincaré (Nancy)) “Études des propriétés structurales, magnétiques et electriques des solutions solides RMn6X6-xX’x (R = Gd-Lu, Y, Sc ; X = Ge, Sn ; X’ = Ga, In) isotypes de HfFe6Ge6“
Jury :
Marc Drillon (Président), IPCMS (Strasbourg)
Bernard Chevalier (Rapporteur), ICMCB (Bordeaux)
Olivier Isnard (Rapporteur), Univ. Joseph. Fourrier (Grenoble)
Fabio Canepa (Examinateur), Univ. Genova (Gênes)
Kurt Hiebl (Examinateur), Univ. Wien (Vienne)
Gerard Venturini (Directeur de These), LCSM (Nancy)
Bernard Malaman (Directeur de These), LCSM (Nancy)

Recherches actuelles

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• Synthèse et caractérisation d’oxydes fonctionnels
Spinelle Les spinelles CoFe2O4 et FeV2O4
GFO Les composés mutiferroïques Ga2-xFexO3
• Partenariat et Valorisation
Dassault-Aviation Collaboration avec Dassault-Aviation
Moliere Laboratoire Commun de Recherche Moliere

Expertise & Développement de logiciel

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• Diffraction des rayons X
Rietveld Analyses Le Bail & Rietveld
REXS Diffraction anomale
• Developpement
FitREXS FitREXS : simulation et affinement de clichés DANES

Autres / Réseaux

Autres :
• Personne Compétente en Radioprotection
• Membre élu au C.I. de l’IPCMS
• Membre élu à la C.R. de l’université de Strasbourg (liste F.E.U)

Networks : Researchgate Twitter
Blender : Rietveld

Publications

[1]
J. Werckmann, J. Cypriano, C.T. Lefèvre, K. Dembele, O. Ersen, D.A. Bazylinski, U. Lins, M. Farina, Localized iron accumulation precedes nucleation and growth of magnetite crystals in magnetotactic bacteria, Scientific Reports. 7 (2017) 8291. https://doi.org/10.1038/s41598-017-08994-9.
[1]
A. Walter, C. Billotey, A. Garofalo, C. Ulhaq-Bouillet, C. Lefèvre, J. Taleb, S. Laurent, L. Vander Elst, R.N. Muller, L. Lartigue, F. Gazeau, D. Felder-Flesch, S. Bégin-Colin, Mastering the Shape and Composition of Dendronized Iron Oxide Nanoparticles To Tailor Magnetic Resonance Imaging and Hyperthermia, Chemistry of Materials. 26 (2014) 5252–5264. https://doi.org/10.1021/cm5019025.
[1]
A. Thomasson, F. Ibrahim, C. Lefèvre, E. Autissier, F. Roulland, C. Mény, C. Leuvrey, S. Choi, W. Jo, O. Crégut, G. Versini, S. Barre, M. Alouani, N. Viart, Effects of iron concentration and cationic site disorder on the optical properties of magnetoelectric gallium ferrite thin films, RSC Advances. 3 (2013) 3124–3130. https://doi.org/10.1039/c2ra22681b.
[1]
A. Thomasson, S. Cherifi, C. Lefèvre, F. Roulland, B. Gautier, D. Albertini, C. Mény, N. Viart, Room temperature multiferroicity in Ga0.6Fe1.4O3:Mg thin films, Journal of Applied Physics. 113 (2013) 214101. https://doi.org/10.1063/1.4808349.
[1]
A. Thomasson, J. Kreisel, C. Lefèvre, F. Roulland, G. Versini, S. Barre, N. Viart, Raman scattering of magnetoelectric gallium ferrite thin films, Journal of Physics-Condensed Matter. 25 (2013) 045401. https://doi.org/10.1088/0953-8984/25/4/045401.
[1]
E. Soszka, M. Jedrzejczyk, C. Lefèvre, D. Ihiawakrim, N. Keller, A.M. Ruppert, TiO2-supported Co catalysts for the hydrogenation of gamma-valerolactone to 2-methyltetrahydrofuran: influence of the support, Catalysis Science & Technology. Early Access (2022). https://doi.org/10.1039/d2cy01044e.
[1]
K. Sartori, D. Ihiawakrim, C. Lefèvre, S. Reguer, C. Mocuta, S. Bégin-Colin, F. Choueikani, B.P. Pichon, A detailed investigation of the core@shell structure of exchanged coupled magnetic nanoparticles after performing solvent annealing, Materials Advances. Early access (2022). https://doi.org/10.1039/d2ma00629d.
[1]
G.D. Salian, B.M. Koo, C. Lefèvre, T. Cottineau, C. Lebouin, A.T. Tesfaye, P. Knauth, V. Keller, T. Djenizian, Niobium Alloying of Self-Organized TiO2 Nanotubes as an Anode for Lithium-Ion Microbatteries, Advanced Materials Technologies. 3 (2018) 1700274. https://doi.org/10.1002/admt.201700274.
[1]
F. Roulland, G. Roseau, A.P. Corredor, L. Wendling, G. Krieger, C. Lefèvre, M. Trassin, G. Pourroy, N. Viart, Promoting the magnetic exchanges in PLD deposited strained films of FeV2O4 thin films, Materials Chemistry and Physics. 276 (2022) 125360. https://doi.org/10.1016/j.matchemphys.2021.125360.
[1]
F. Roulland, C. Lefèvre, A. Thomasson, N. Viart, Study of Ga(2-x)FexO3 solid solution: Optimisation of the ceramic processing, in: Journal of the European Ceramic Society, 2013: pp. 1029–1035. https://doi.org/10.1016/j.jeurceramsoc.2012.11.014.
[1]
Z. Raolison, Q. Clement, A.-L. Adenot-Engelvin, N. Mallejac, C. Lefèvre, G. Pourroy, F. Boust, N. Vukadinovic, Broadband Permeability Spectra of Flake-Shaped Ferromagnetic Particle Composites, in: IEEE Transactions on Magnetics, 2017: p. 2801704. https://doi.org/10.1109/TMAG.2017.2735943.
[1]
Z. Raolison, C. Lefèvre, J. Neige, A.-L. Adenot-Engelvin, J.M. Greneche, N. Vukadinovic, G. Pourroy, Structural and microwave properties of silica-coated NiFeMo flakes/polymer composites, Materials Research Express. 2 (2015) 026101. https://doi.org/10.1088/2053-1591/2/2/026101.
[1]
Z. Raolison, C. Lefèvre, J. Neige, A.L. Adenot-Engelvin, G. Pourroy, N. Vukadinovic, Preparation and Microwave Properties of Silica Coated Ni-Fe-Mo Flakes Composites, in: IEEE Transactions on Magnetics, 2013: pp. 986–989. https://doi.org/10.1109/tmag.2012.2225025.
[1]
D. Preziosi, S. Homkar, C. Lefèvre, M. Salluzzo, N. Viart, Unusual anisotropic magnetic orbital moment obtained from x-ray magnetic circular dichroism in a multiferroic oxide system, Physical Review B. 103 (2021) 184420. https://doi.org/10.1103/PhysRevB.103.184420.
[1]
B.P. Pichon, O. Gerber, C. Lefèvre, I. Florea, S. Fleutot, W. Baaziz, M. Pauly, M. Ohlmann, C. Ulhaq, O. Ersen, V. Pierron-Bohnes, P. Panissod, M. Drillon, S. Bégin-Colin, Microstructural and Magnetic Investigations of Wüstite-Spinel Core-Shell Cubic-Shaped Nanoparticles, Chemistry of Materials. 23 (2011) 2886–2900. https://doi.org/10.1021/cm2003319.
[1]
A. Pena Corredor, N. Viart, C. Lefèvre, inserexs: reflection choice software for resonant elastic X-ray scattering., Journal of Applied Crystallography. 56 (2023) 854–859. https://doi.org/10.1107/S1600576723002212.
[1]
S.H. Oh, R.H. Shin, C. Lefèvre, A. Thomasson, F. Roulland, Y. Shin, D.-H. Kim, J.-Y. Kim, A. Demchenko, C. Leuvrey, C. Mény, W. Jo, N. Viart, Incorporation of cobalt ions into magnetoelectric gallium ferrite epitaxial films: tuning of conductivity and magnetization, RSC Advances. 5 (2015) 34265–34271. https://doi.org/10.1039/c5ra03609g.
[1]
E. Miyako, B.P. Pichon, C. Menard-Moyon, I.A. Vacchi, C. Lefèvre, S. Bégin-Colin, A. Bianco, Design, synthesis, characterization and properties of magnetic nanoparticle-nanocarbon hybrids, Carbon. 96 (2016) 49–56. https://doi.org/10.1016/j.carbon.2015.09.045.
[1]
B. Meunier, S. Homkar, F. Choueikani, M.G. Silly, C. Lefèvre, F. Roulland, C. Leuvrey, J. Robert, D. Preziosi, N. Viart, Nonmonotonous temperature fluctuations of the orbital moment and spin-orbit coupling in multiferroic gallium ferrite thin films, Physical Review B. 106 (2022) 184410. https://doi.org/10.1103/PhysRevB.106.184410.
[1]
E. Martin, F. Roulland, S. Grenier, F. Appert, J. Juraszek, M. Trassin, C. Bouillet, E. Chikoidze, C. Arnold, B. Berini, Y. Dumont, S. Colis, S. Barre, G. Versini, D. Preziosi, C. Leuvrey, N. Blanc, N. Boudet, G. Pourroy, N. Viart, C. Lefèvre, Non-auxeticiauxetic transitions inducing modifications of the magnetic anisotropy in CoFe2O4 thin films, Journal of Alloys and Compounds. 836 (2020) 155425. https://doi.org/10.1016/j.jallcom.2020.155425.
[1]
X. Liu, B.P. Pichon, C. Ulhaq, C. Lefèvre, J.-M. Greneche, D. Begin, S. Bégin-Colin, Systematic Study of Exchange Coupling in Core Shell Fe3-delta O4@CoO Nanoparticles, Chemistry of Materials. 27 (2015) 4073–4081. https://doi.org/10.1021/acs.chemmater.5b01103.
[1]
C. Lefèvre, A. Demchenko, C. Bouillet, M. Luysberg, X. Devaux, F. Roulland, G. Versini, S. Barre, Y. Wakabayashi, N. Boudet, C. Leuvrey, M. Acosta, C. Mény, E. Martin, S. Grenier, V. Favre-Nicolin, N. Viart, Nondestructive Method for the Determination of the Electric Polarization Orientation in Thin Films: Illustration on Gallium Ferrite Thin Films, Small Methods. 1 (2017) 1700234. https://doi.org/10.1002/smtd.201700234.
[1]
C. Lefèvre, A. Thomasson, F. Roulland, V. Favre-Nicolin, Y. Joly, Y. Wakabayashi, G. Versini, S. Barre, C. Leuvrey, A. Demchenko, N. Boudet, N. Viart, Determination of the cationic distribution in oxidic thin films by resonant X-ray diffraction: the magnetoelectric compound Ga$\sb 2$-$ıt x$Fe$\sb ıt x$O$\sb 3$, Journal of Applied Crystallography. 49 (2016) 1308–1314. https://doi.org/10.1107/S1600576716010001.
[1]
C. Lefèvre, R.H. Shin, J.H. Lee, S.H. Oh, F. Roulland, A. Thomasson, E. Autissier, C. Mény, W. Jo, N. Viart, Reduced leakage currents and possible charge carriers tuning in Mg-doped Ga0.6Fe1.4O3 thin films, Applied Physics Letters. 100 (2012) 262904 /p.1–4. https://doi.org/10.1063/1.4729872.
[1]
C. Lefèvre, F. Roulland, A. Thomasson, E. Autissier, C. Leuvrey, S. Barre, G. Versini, N. Viart, G. Pourroy, Stabilization of scandium rich spinel ferrite CoFe(2-x)Sc(x)O4 (x <= 1) in thin films, Journal of Solid State Chemistry. 232 (2015) 118–122. https://doi.org/10.1016/j.jssc.2015.09.012.
[1]
C. Lefèvre, F. Roulland, A. Thomasson, C. Mény, F. Porcher, G. Andre, N. Viart, Magnetic and Polar Properties’ Optimization in the Magnetoelectric Ga2-xFexO3 Compounds, Journal of Physical Chemistry C. 117 (2013) 14832–14839. https://doi.org/10.1021/jp403733b.
[1]
B. Kundys, F. Roulland, C. Lefèvre, C. Mény, A. Thomasson, N. Viart, Room temperature polarization in the ferrimagnetic Ga2-xFexO3 ceramics, Journal of the European Ceramic Society. 35 (2015) 2277–2281. https://doi.org/10.1016/j.jeurceramsoc.2015.02.029.
[1]
S. Homkar, E. Martin, B. Meunier, A. Anadon-Barcelona, C. Bouillet, J. Gorchon, K. Dumesnil, C. Lefèvre, F. Roulland, O. Copie, D. Preziosi, S. Petit-Watelot, J.-C. Rojas-Sanchez, N. Viart, Spin Current Transport in Hybrid Pt/Multifunctional Magnetoelectric Ga0.6Fe1.4O3 Bilayers, ACS Applied Electronic Materials. 3 (2021) 4433–4440. https://doi.org/10.1021/acsaelm.1c00586.
[1]
S. Homkar, D. Preziosi, X. Devaux, C. Bouillet, J. Nordlander, M. Trassin, F. Roulland, C. Lefèvre, G. Versini, S. Barre, C. Leuvrey, M. Lenertz, M. Fiebig, G. Pourroy, N. Viart, Ultrathin regime growth of atomically flat multiferroic gallium ferrite films with perpendicular magnetic anisotropy, Physical Review Materials. 3 (2019) 124416. https://doi.org/10.1103/PhysRevMaterials.3.124416.
[1]
P. Guardia, S. Nitti, M.E. Materia, G. Pugliese, N. Yaacoub, J.-M. Greneche, C. Lefèvre, L. Manna, T. Pellegrino, Gold-iron oxide dimers for magnetic hyperthermia: the key role of chloride ions in the synthesis to boost the heating efficiency, Journal of Materials Chemistry B. 5 (2017) 4587–4594. https://doi.org/10.1039/c7tb00968b.
[1]
P. Guardia, A. Riedinger, S. Nitti, G. Pugliese, S. Marras, A. Genovese, M.E. Materia, C. Lefèvre, L. Manna, T. Pellegrino, One pot synthesis of monodisperse water soluble iron oxide nanocrystals with high values of the specific absorption rate, Journal of Materials Chemistry B. 2 (2014) 4426–4434. https://doi.org/10.1039/c4tb00061g.
[1]
J. Goetz, A. Nonat, A. Diallo, M. Sy, I. Sera, A. Lecointre, C. Lefèvre, C.F. Chan, K.-L. Wong, L.J. Charbonnière, Ultrabright Lanthanide Nanoparticles, ChemPlusChem. 81 (2016) 526–534. https://doi.org/10.1002/cplu.201600007.
[1]
O. Gerber, B.P. Pichon, C. Ulhaq, J.-M. Greneche, C. Lefèvre, I. Florea, O. Ersen, D. Begin, S. Lemonnier, E. Barraud, S. Bégin-Colin, Low Oxidation State and Enhanced Magnetic Properties Induced by Raspberry Shaped Nanostructures of Iron Oxide, Journal of Physical Chemistry C. 119 (2015) 24665–24673. https://doi.org/10.1021/acs.jpcc.5b08164.
[1]
P. Garcia-Munoz, F. Fresno, C. Lefèvre, D. Robert, N. Keller, Influence of the solid titanium source on the activity of La1_xTixFeO3 photo-CWPO catalysts under UV-A light, Catalysis Today. 413–415 (2023) 113974. https://doi.org/10.1016/j.cattod.2022.12.005.
[1]
P. Garcia-Munoz, F. Fresno, C. Lefèvre, D. Robert, N. Keller, Ti- -Modified LaFeO3/beta-SiC Alveolar Foams as Immobilized Dual Catalysts with Combined Photo-Fenton and Photocatalytic Activity, ACS Applied Materials & Interfaces. 12 (2020) 57025–57037. https://doi.org/10.1021/acsami.0c16647.
[1]
P. Garcia-Munoz, F. Fresno, C. Lefèvre, D. Robert, N. Keller, Synergy effect between photocatalysis and heterogeneous photo-Fenton catalysis on Ti-doped LaFeO3 perovskite for high efficiency light-assisted water treatment, Catalysis Science & Technology. 10 (2020) 1299–1310. https://doi.org/10.1039/c9cy02269d.
[1]
P. Garcia-Munoz, F. Fresno, C. Lefèvre, D. Robert, N. Keller, Highly robust La1-xTixFeO3 dual catalyst with combined photocatalytic and photo-CWPO activity under visible light for 4-chlorophenol removal in Chock for water, Applied Catalysis B-Environmental. 262 (2020) 118310. https://doi.org/10.1016/j.apcatb.2019.118310.
[1]
P. Garcia-Munoz, C. Lefèvre, D. Robert, N. Keller, Ti-substituted LaFeO3 perovskite as photoassisted CWPO catalyst for water treatment, Applied Catalysis B-Environmental. 248 (2019) 120–128. https://doi.org/10.1016/j.apcatb.2019.02.030.
[1]
A. Demchenko, S. Homkar, C. Bouillet, C.T. Lefèvre, F. Roulland, D. Preziosi, G. Versini, C. Leuvrey, P. Boullay, X. Devaux, N. Viart, Unveiling unconventional ferroelectric switching in multiferroic Ga-0.6 Fe1.4O3 thin films through multiscale electron microscopy investigations, Acta Materialia. 240 (2022) 118337. https://doi.org/10.1016/j.actamat.2022.118337.
[1]
A. Demchenko, Y. Chang, E. Chikoidze, B. Berini, C. Lefèvre, F. Roulland, C. Ulhaq-Bouillet, G. Versini, S. Barre, C. Leuvrey, V. Favre-Nicolin, N. Boudet, S. Zafeiratos, Y. Dumont, N. Viart, Tuning the conductivity type in a room temperature magnetic oxide: Ni-doped Ga0.6Fe1.4O3 thin films, RSC Advances. 6 (2016) 28248–28256. https://doi.org/10.1039/c6ra01540a.
[1]
B. de Tymowski, Y. Liu, C. Mény, C. Lefèvre, D. Begin, P. Nguyen, C. Pham, D. Edouard, F. Luck, C. Pham-Huu, Co-Ru/SiC impregnated with ethanol as an effective catalyst for the Fischer-Tropsch synthesis, Applied Catalysis A-General. 419 (2012) 31–40. https://doi.org/10.1016/j.apcata.2012.01.004.
[1]
M. Darcheville, A.-L. Adenot-Engelvin, C. Boscher, N. Vukadinovic, C. Lefèvre, A. Thiaville, C. Sanchez, Evidence of the Superparamagnetic State in the Zero-Field Microwave Susceptibility Spectra of Ferrimagnetic Nanoparticles, IEEE Magnetics Letters. 11 (2020) 6105305. https://doi.org/10.1109/LMAG.2020.3026228.
[1]
G. Cotin, C. Kiefer, F. Perton, D. Ihiawakrim, C. Blanco-Andujar, S. Moldovan, C. Lefèvre, O. Ersen, B. Pichon, D. Mertz, S. Bégin-Colin, Unravelling the Thermal Decomposition Parameters for The Synthesis of Anisotropic Iron Oxide Nanoparticles, Nanomaterials. 8 (2018) 881. https://doi.org/10.3390/nano8110881.
[1]
G. Cotin, F. Perton, C. Petit, S. Sall, C. Kiefer, V. Begin, B. Pichon, C. Lefèvre, D. Mertz, J.-M. Greneche, S. Bégin-Colin, Harnessing Composition of Iron Oxide Nanoparticle: Impact of Solvent-Mediated Ligand-Ligand Interaction and Competition between Oxidation and Growth Kinetics, Chemistry of Materials. 32 (2020) 9245–9259. https://doi.org/10.1021/acs.chemmater.0c03041.
[1]
A.P. Corredor, L. Wendling, D. Preziosi, L. Schlur, C. Leuvrey, D. Thiaudiere, E. Elklaim, N. Blanc, S. Grenier, F. Roulland, N. Viart, C. Lefèvre, Oxygen crystallographic positions in thin films by non-destructive resonant elastic X-ray scattering, Journal of Applied Crystallography. 55 (2022) 526–532. https://doi.org/10.1107/S1600576722003673.
[1]
S. Choi, C. Lefèvre, F. Roulland, C. Mény, N. Viart, B. To, D.E. Shafer, R. Shin, J. Lee, W. Jo, Optical transitions in magnetoelectric Ga0.6Fe1.4O3 from 0.73 to 6.45 eV, Journal of Vacuum Science & Technology B. 30 (2012) 041204 /p.1–5. https://doi.org/10.1116/1.4721649.
[1]
M.T. Camci, M. Pauly, C. Lefèvre, C. Bouillet, M. Maaloum, G. Decher, D. Martel, Polarization-dependent optical band gap energy of aligned semiconducting titanium oxide nanowire deposits, Nanoscale. 13 (2021) 8958–8965. https://doi.org/10.1039/d1nr01236c.
[1]
W. Baaziz, B.P. Pichon, C. Lefèvre, C. Ulhaq-Bouillet, J.M. Greneche, M. Toumi, T. Mhiri, S. Bégin-Colin, High Exchange Bias in Fe3-delta O4@CoO Core Shell Nanoparticles Synthesized by a One-Pot Seed-Mediated Growth Method, Journal of Physical Chemistry C. 117 (2013) 11436–11443. https://doi.org/10.1021/jp402823h.