| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Boudet, Nathalie
Processes and Engineering in Mechanics and Materials
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2023Influence of the Ge content on the lithiation process of crystalline Si 1− x Ge x nanoparticle-based anodes for Li-ion batteriescitations
- 2022Relationship between atomic structure and excellent glass forming ability in Pd 42.5 Ni 7.5 Cu 30 P 20 metallic glasscitations
- 2022Coupling between elastic strains and phase transition in dense pure zirconia polycrystalscitations
- 2022Relationship between atomic structure and excellent glass forming ability in Pd42.5Ni7.5Cu30P20 metallic glasscitations
- 2021Detailed structural analysis of amorphous Pd40Cu40P20: Comparison with the metallic glass Pd40Ni40P20 from the viewpoint of glass forming abilitycitations
- 2021Detailed structural analysis of amorphous Pd 40 Cu 40 P 20 :Comparison with the metallic glass Pd 40 Ni 40 P 20 from the viewpoint of glass forming abilitycitations
- 2020Prelithiation of silicon/graphite composite anodes: Benefits and mechanisms for long-lasting Li-Ion batteriescitations
- 2019Advanced Non-Destructive in Situ Characterization of Metals with the French Collaborating Research Group D2AM/BM02 Beamline at the European Synchrotron Radiation Facilitycitations
- 2019Advanced Non-Destructive in Situ Characterization of Metals with the French Collaborating Research Group D2AM/BM02 Beamline at the European Synchrotron Radiation Facilitycitations
- 2019Heterogeneous Nanostructural Aging of Fuel Cell Ionomer Revealed by Operando SAXScitations
- 2019Partial structure investigation of the traditional bulk metallic glass Pd40Ni40P20citations
- 2019Partial structure investigation of the traditional bulk metallic glass Pd40Ni40 P20citations
- 2018In situ Synchrotron X-Ray diffraction study of high-temperature stress relaxation in chromia scales containing the reactive element yttriumcitations
- 2017Strains in thermally growing Cr2O3 films measured in situ using synchrotron X-rayscitations
- 2016Tuning the conductivity type in a room temperature magnetic oxide: Ni-doped Ga0.6Fe1.4O3 thin filmscitations
- 2016Reaction of Ni film with In0.53Ga0.47As: Phase formation and texturecitations
- 2016Determination of the cationic distribution in oxidic thin films by resonant X-ray diffraction: the magnetoelectric compound Ga2-xFexO3. Supporting information
- 2016Self-organized arrays of dislocations in thin smectic liquid crystal filmscitations
- 2016Self-organized arrays of dislocations in thin smectic liquid crystal filmscitations
- 2014Probing Self-Assembly of Cylindrical Morphology Block Copolymer Using in Situ and ex Situ Grazing Incidence Small-Angle X-ray Scattering: The Attractive Case of Graphoepitaxycitations
- 2012Key experimental information on intermediate-range atomic structures in amorphous Ge2Sb2Te5 phase change materialcitations
- 2012Anomalous x-ray diffraction measurements of long-range order in (001)-textured L1(0) FePtCu thin filmscitations
- 2011Microstructural mapping of C60 phase transformation into disordered graphite at high pressure, using X-ray diffraction microtomographycitations
- 2007Development of structural order during supercooling of a fragile oxide meltcitations
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article
Tuning the conductivity type in a room temperature magnetic oxide: Ni-doped Ga0.6Fe1.4O3 thin films
Abstract
Ni-Doped thin films of the room temperature ferrimagnetic oxide Ga0.6Fe1.4O3 were deposited by pulsed laser deposition and their electronic transport and structural and magnetic properties were studied. The actual insertion of the Ni cations within the Ga0.6Fe1.4O3 structure has been checked by resonant X-ray scattering. A clear extremum is noticed for all properties for the 2% Ni doping: extrema in the crystallographic cell parameters of the films, maximum in the Curie temperature, and maximum in the electric resistivity. We also observed a change of conductivity type for this dopant concentration, from n-type for Ni contents below 2% to p-type for Ni contents above 2%. We explain this behavior by the existence of oxygen vacancies in the pulsed laser deposited Ga0.6Fe1.4O3 thin films, which results in the reduction of some of the Fe3+ into Fe2+ cations, and n-type conduction via a hopping mechanism. The insertion of Ni2+ cations first deals with the presence of oxygen vacancies and reduces the number of n-type carriers in the films, in a compensation-like mechanism. When the number of introduced Ni2+ cations dominates the number of oxygen vacancies, conductivity becomes p-type and starts to increase again. We believe that the tunability of the conduction type and magnitude in thin films of a room temperature ferrimagnetic material paves the way towards new all oxide electronic devices.