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Guillaume Nataf

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Guillaume F. Nataf received a M.Sc. degree in physics and nanoscience from the Grenoble Institute of Technology in 2013, and a Ph.D degree in physics from the University of Luxembourg and Université Paris Saclay in 2016. From 2017 to 2018, he was a postdoctoral researcher in the University of Cambridge (United Kingdom) where he then became a Research Fellow of the Royal Commission of 1851 from 2018 to 2020. In 2021, he became a CNRS Research Scientist in GREMAN, Tours, France. His research focuses on functional oxides (ferroelectrics and ferroelastics), whose outstanding properties result from a complex interaction between chemical compositions, crystallographic orientations, and micro/nanostructures. He is particularly interested in micro/nanostructures (pores, domains, domain walls).


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Subcoercive-field dielectric response of 0.5 (Ba 0.7 Ca 0.3 TiO 3 ) -0.5 (BaZr 0.2 Ti 0.8 O 3 ) thin film: peculiar third harmonic signature of phase transitions and residual ferroelectricity

Kevin Nadaud , Guillaume F Nataf , Nazir Jaber , Micka Bah , Béatrice Negulescu
Applied Physics Letters, 2024, 124 (4), pp.042901. ⟨10.1063/5.0182718⟩
Journal articles hal-04410474v1
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Influence of kinks on the interaction energy between ferroelastic domain walls in membranes and thin films

Guangming Lu , Kimura Hideo , Xiangdong Ding , Zhijun Xu , Ruiqing Chu
Microstructures, 2023, 3 (4), ⟨10.20517/microstructures.2023.28⟩
Journal articles hal-04250873v1
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Influence of cation vacancy concentrations on ultra-low thermal conductivity in (1-x)BiVO4 – xBi2/3MoO4 scheelite solid solutions

Guillaume F Nataf , Hicham Ait Laasri , Damien Brault , Tatiana Chartier , Chalit Ya
Open Ceramics, 2023, 15, pp.100406. ⟨10.1016/j.oceram.2023.100406⟩
Journal articles hal-04171953v1
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Elastic softening and hardening at intersections between twin walls and surfaces in ferroelastic materials

Xiaomei He , Xiangdong Ding , Jun Sun , Guillaume F Nataf , Ekhard K H Salje
APL Materials, 2023, 11 (7), pp.071114. ⟨10.1063/5.0159836⟩
Journal articles hal-04171962v1
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Strain-coupling and relaxation dynamics in multicaloric ammonium sulphate (NH4)2SO4

Michael Carpenter , Miguel Costa , Guillaume Nataf , Xavier Moya
Physical Review Materials, 2023, 7, pp.083601. ⟨10.1103/PhysRevMaterials.7.083601⟩
Journal articles hal-04250852v1
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Ultra-low lattice thermal conductivity in tungsten-based scheelite ceramics

Hicham Ait Laasri , Eliane Bsaibess , Fabian Delorme , Guillaume F. Nataf , Fabien Giovannelli
Journal of Alloys and Compounds, 2023, 955, pp.170167. ⟨10.1016/j.jallcom.2023.170167⟩
Journal articles hal-04099589v1
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Influence of ferroelastic domain walls on thermal conductivity

P. Limelette , M. El Kamily , H. Aramberri , Fabien Giovannelli , M. Royo
Physical Review B, 2023, 108 (14), pp.144104. ⟨10.1103/PhysRevB.108.144104⟩
Journal articles hal-04244990v1
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Large barocaloric effects in two novel ferroelectric molecular plastic crystals

Alejandro Salvatori , David Aguilà , Guillem Aromí , Lluís Mañosa , Antoni Planes
Journal of Materials Chemistry A, 2023, 11 (23), pp.12140-12150. ⟨10.1039/D2TA10033A⟩
Journal articles hal-04162731v1
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Quantitative atomic order characterization of a Mn2FeAl Heusler epitaxial thin film

Samer Kurdi , Yuya Sakuraba , Keisuke Masuda , Hiroo Tajiri , Bhaskaran Nair
Journal of Physics D: Applied Physics, 2022, 55 (18), pp.185305. ⟨10.1088/1361-6463/ac4e32⟩
Journal articles hal-03585705v1

Avalanche criticality during ferroelectric/ferroelastic switching

Blai Casals , Guillaume F. Nataf , Ekhard Salje
Nature Communications, 2021, 12 (1), ⟨10.1038/s41467-020-20477-6⟩
Journal articles hal-03141685v1
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Raman signatures of ferroic domain walls captured by principal component analysis

Guillaume F. Nataf , Nicholas Barrett , J. Kreisel , M. Guennou
Journal of Physics: Condensed Matter, 2018, 30, pp.035902. ⟨10.1088/1361-648X/aa9778⟩
Journal articles cea-01687736v1

Control of surface potential at polar domain walls in a nonpolar oxide

G. Nataf , M. Guennou , J. Kreisel , Pierre-Yves Hicher , R. Haumont
Physical Review Materials, 2017, 1 (7), pp.74410 - 74410. ⟨10.1103/PhysRevMaterials.1.074410⟩
Journal articles hal-01679066v1

Low energy electron imaging of domains and domain walls in magnesium-doped lithium niobate

G. F. Nataf , P. Grysan , M. Guennou , J. Kreisel , D. Martinotti
Scientific Reports, 2016, 6, ⟨10.1038/srep33098⟩
Journal articles cea-01481473v1

Magnetic properties of the honeycomb oxide Na 2 Co 2 TeO 6

E. Lefrançois , M. Songvilay , J. Robert , G. Nataf , E. Jordan
Physical Review B, 2016, 94 (21), pp.214416. ⟨10.1103/PhysRevB.94.214416⟩
Journal articles hal-01632248v1
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Evolution of defect signatures at ferroelectric domain walls in Mg-doped LiNbO3

Guillaume F Nataf , Mael Guennou , Alexander Hauβmann , N Barrett , Jens Kreisel
physica status solidi (RRL) - Rapid Research Letters, 2016, 10, pp.222-226. ⟨10.1002/pssr.201510303⟩
Journal articles cea-01349607v1
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Ultrafast acousto-optic mode conversion in optically birefringent ferroelectrics

Mariusz F Lejman , Gwenäelle G. Vaudel , Ingrid F Infante , Ievgeniia F Chaban , Thomas Pezeril
Nature Communications, 2016, 7 (1), ⟨10.1038/ncomms12345⟩
Journal articles hal-02536739v1
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Influence of defects and domain walls on dielectric and mechanical resonances in LiNbO$_3$

Guillaume F Nataf , Oktay Aktas , Torsten Granzow , Ekhard K. H. Salje
Journal of Physics: Condensed Matter, 2015, 28, pp.015901. ⟨10.1088/0953-8984/28/1/015901⟩
Journal articles cea-01550765v1

Elastic excitations in BaTiO3 single crystals and ceramics: Mobile domain boundaries and polar nanoregions observed by resonant ultrasonic spectroscopy

Ekhard Salje , Michael Carpenter , Guillaume F. Nataf , Gunnar Picht , Kyle Webber
Physical Review B, 2013, 87 (1), ⟨10.1103/PhysRevB.87.014106⟩
Journal articles hal-03143111v1

Ferroelastic aspects of relaxor ferroelectric behaviour in Pb(In1/2Nb1/2)O3-Pb(Mg1/3Nb2/3)O3-PbTiO3 perovskite

Guillaume F. Nataf , Qian Li , Yun Liu , Ray Withers , Sarah Driver
Journal of Applied Physics, 2013, 113 (12), pp.124102. ⟨10.1063/1.4794027⟩
Journal articles hal-03143095v1

Dense KTaO3 ceramics prepared by Spark Plasma Sintering

Lucile Féger , Gaurav Vats , Beatriz Noheda , Fabien Giovannelli , Guillaume F. Nataf
Séminaire scientifique 'estival' MatV2L édition 2022, Jun 2022, Limoges, France
Conference papers hal-03995681v1

Domain-wall engineering in multiferroic materials

Guillaume F. Nataf
DPG Meeting, Sep 2022, Regensburg, Germany
Conference papers hal-03995687v1

Impact of ferroelectric polarization on heat transport in a BaTiO3 single crystal

Kontou K. , Féger L. , Monot-Laffez I. , Gomès S. , Nataf G. F.
Plénières 2022 du GDR NAME, Oct 2022, Lyon, France
Conference papers hal-04380055v1

Domain Walls for Heat Flow Control

Mehdi El Kamily , Patrice Limelette , Guillaume F. Nataf
33d Annual Workshop on Fundamental Physics of Ferroelectrics, Feb 2022, Washington DC, United States
Conference papers hal-03995663v1

Avalanches in ferroelectric and ferroelastic materials

Guillaume F. Nataf
Avalanche dynamics and precursors of catastrophic events, Aug 2022, Debrecen, Hungary
Conference papers hal-03995685v1
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New approaches to understand conductive and polar domain walls by Raman spectroscopy and low energy electron microscopy

Guillaume F. Nataf
Materials Science [cond-mat.mtrl-sci]. Université Paris Saclay (COmUE); Université du Luxembourg, 2016. English. ⟨NNT : 2016SACLS436⟩
Theses tel-01412787v1