A
Alain Barthélémy
Researcher at University of Limoges
Publications - 330
Citations - 9527
Alain Barthélémy is an academic researcher from University of Limoges. The author has contributed to research in topics: Laser & Fiber laser. The author has an hindex of 46, co-authored 328 publications receiving 8681 citations. Previous affiliations of Alain Barthélémy include University of Paris-Sud & Centre national de la recherche scientifique.
Papers
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Journal ArticleDOI
Nearly total spin polarization in La2/3Sr1/3MnO3 from tunneling experiments
Martin Bowen,Manuel Bibes,Alain Barthélémy,J.-P. Contour,Abdelmadjid Anane,Y. Lemaitre,Albert Fert +6 more
TL;DR: In this paper, a magnetoresistance ratio of more than 1800% is obtained at 4 K, from which they infer an electrode spin polarization of at least 95% and demonstrate the half-metallic nature of mixed-valence manganites and demonstrates their capability as a spin analyzer.
Journal ArticleDOI
High Mobility in LaAlO 3 / SrTiO 3 Heterostructures: Origin, Dimensionality, and Perspectives
Gervasi Herranz,Mario Basletić,Mario Basletić,Manuel Bibes,C. Carrétéro,Emil Tafra,Eric Jacquet,Karim Bouzehouane,Cyrile Deranlot,Amir Hamzić,Jean-Marc Broto,Alain Barthélémy,Albert Fert +12 more
TL;DR: Experimental data strongly support an interpretation of these properties based on the creation of oxygen vacancies in the SrTiO3 substrates during the growth of the LaAlO3 layer, which opens interesting prospects for all-oxide electronics.
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Spatial beam self-cleaning in multimode fibres
Katarzyna Krupa,Katarzyna Krupa,Alessandro Tonello,Badr Mohamed Ibrahim Shalaby,Badr Mohamed Ibrahim Shalaby,Marc Fabert,Alain Barthélémy,Guy Millot,Stefan Wabnitz,Stefan Wabnitz,Vincent Couderc +10 more
TL;DR: In this article, the authors show that the Kerr effect in a graded-index (GRIN) MMF is the driving mechanism that overcomes speckle distortions, and leads to a counterintuitive effect that results in a spatially clean output beam robust against fibre bending.
Journal ArticleDOI
Mapping the spatial distribution of charge carriers in LaAlO3/SrTiO3 heterostructures
Mario Basletić,Jean-Luc Maurice,C. Carrétéro,Gervasi Herranz,O. Copie,Manuel Bibes,Eric Jacquet,Karim Bouzehouane,Stéphane Fusil,Alain Barthélémy +9 more
TL;DR: It is found that, depending on specific growth protocols, the spatial extension of the high-mobility electron gas can be varied from hundreds of micrometres into SrTiO(3) to a few nanometres next to the LaAlO( 3)/SrTiO (3) interface.
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Influence of parasitic phases on the properties of BiFeO3 epitaxial thin films
Hélène Béa,Manuel Bibes,Alain Barthélémy,Karim Bouzehouane,Eric Jacquet,A. N. Khodan,J.-P. Contour,Stéphane Fusil,F. Wyczisk,Anne Forget,D. Lebeugle,Dorothée Colson,Michel Viret +12 more
TL;DR: In this article, the influence of deposition pressure and temperature on the growth of BiFeO3 thin films by pulsed laser deposition onto (001)-oriented SrTiO3 substrates was explored.