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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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Trautmann, Christina
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (35/35 displayed)
- 2024Conformal SiO₂ coating of sub-100 nm diameter channels of polycarbonate etched ion-track channels by atomic layer deposition
- 2024Nanoscale Structuring in Confined Geometries using Atomic Layer Deposition: Conformal Coating and Nanocavity Formation
- 2023Three-dimensional nanowire networks fabricated by ion track nanotechnology and their applicationscitations
- 2023Electrochemical Conversion of Cu Nanowire Arrays into Metal-Organic Frameworks HKUST-1citations
- 2023Three-dimensional free-standing gold nanowire networks as a platform for catalytic applicationscitations
- 2023Experimental evidence of a size-dependent sign change of the Seebeck coefficient of Bi nanowire arrayscitations
- 2023Fabrication, swift heavy ion irradiation, and damage analysis of lanthanide targetscitations
- 2022Biopolymer‐Templated Deposition of Ordered and Polymorph Titanium Dioxide Thin Films for Improved Surface‐Enhanced Raman Scattering Sensitivitycitations
- 2022Neutron Total Scattering and X-ray Diffraction Analysis of Radiation Effects in A3BO7 Weberite-type Complex Oxides
- 2022Far-From-Equilibrium Processing of Materials under Extreme Conditions
- 2021Shape of nanopores in track-etched polycarbonate membranescitations
- 2021Ion tracks in ultrathin polymer films: The role of the substratecitations
- 2021Conical Nanotubes Synthesized by Atomic Layer Deposition of Al2O3, TiO2, and SiO2 in Etched Ion-Track Nanochannelscitations
- 2020Cu2O/TiO2 Nanowire Assemblies as Photocathodes for Solar Hydrogen Evolution: Influence of Diameter, Length and NumberDensity of Wirescitations
- 2020Sputtering of LiF and other halide crystals in the electronic energy loss regimecitations
- 2020Effects of Grain Size on the Radiation Response of CeO2, ThO2, and UO2
- 2020Zinc ion driven ionic conduction through single asymmetric nanochannels functionalized with nanocompositescitations
- 2018ZnO Nanowire Networks as Photoanode Model Systems for Photoelectrochemical Applicationscitations
- 2018Synergistically-enhanced ion track formation in pre-damaged strontium titanate by energetic heavy ionscitations
- 2018Radiation-induced disorder in compressed lanthanide zirconates
- 2018Nanoscale Structuring in Confined Geometries using Atomic Layer Depositioncitations
- 2018Effects of Crystallite Size on the Response of CeO2, ThO2, and UO2 to Highly Ionizing Radiation
- 2017Fabrication of nanoporous graphene/polymer composite membranescitations
- 2016Electrodeposition and electroless plating of hierarchical metal superstructures composed of 1D nano- and microscale building blockscitations
- 2016Anisotropic expansion and amorphization of Ga$_2$O$_3$ irradiated with 946MeV Au ionscitations
- 2015Growth and morphological analysis of segmented AuAg alloy nanowires created by pulsed electrodeposition in ion-track etched membranescitations
- 2015Response of Gd2Ti2O7 and La2Ti2O7 to swift-heavy ion irradiation and annealingcitations
- 2014Swift heavy ion irradiation-induced amorphization of La2Ti2O7citations
- 2014Swift heavy ion irradiation-induced amorphization of $La_2Ti_2O_7$citations
- 2014Polycarbonate activation for electroless plating by dimethylaminoborane absorption and subsequent nanoparticle depositioncitations
- 2012Swift heavy ion-induced amorphization of $CaZrO_{3}$ perovskitecitations
- 2010Generation of colour centres in yttria-stabilized zirconia by heavy ion irradiations in the GeV rangecitations
- 2008X-RAY DIFFRACTION STUDY OF THE DAMAGE INDUCED IN YTTRIA-STABILIZED ZIRCONIA BY SWIFT HEAVY ION IRRADIATIONS
- 2004Colour centre production in yttria-stabilized zirconia by swift charged particle irradiationscitations
- 2004Colour center production in yttria-stabilizing zirconia by swift charge particle irradiations.citations
Places of action
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document
Neutron Total Scattering and X-ray Diffraction Analysis of Radiation Effects in A3BO7 Weberite-type Complex Oxides
Abstract
Progress in advanced fuels and waste forms requires unprecedented control of the design and organization of systems at the micro, meso, and nanoscale. In the last years, weberite-type oxides with the general formula A3BO7 (where A is a trivalent rare earth element and B is a pentavalent cation, such as Ta, Nb) have sparked interest in a number of technological applications due to their chemical and structural flexibility, which leads to a broad spectrum of physical properties, such as high ionic conductivity, ferroelectricity, and photocatalytic activity. In addition, weberite-type oxides have recently been linked to pyrochlore oxides (A2B2O7) because they share similar atomic building blocks that form after exposure to swift heavy ions. Here, we present a comprehensive ion irradiation study on weberite-type tantalate oxides (A3TaO7, A = Pr, Tb, Dy, Y, Yb), covering three major structural classes characterized by different long-range symmetries and organizations at the nano and mesoscale. Irradiation experiments were performed using 1.6 GeV Au ions at the X0 beamline of the GSI Helmholtz Center (Darmstadt, Germany). Samples were analyzed using the neutron total scattering technique at the Nanoscale-Ordered Materials (NOMAD) beamline at Oak Ridge National Laboratory and X-ray diffraction at the Advanced Photon Source (APS) at Argonne National Laboratory, respectively. The data analysis establishes a link between the material resistance to amorphization and the A-site cation ionic radius: smaller cations enhance radiation resistance to amorphization. Analyses of the neutron pair distribution function (PDF) establish that the pristine (unirradiated) local organization in these materials is a critical factor: indeed, ion beams are more susceptible to destroying the long-range order in orthorhombic Pr3TaO7 (Cmcm) than in Tb3TaO7 (Ccmm). Cubic Yb3TaO7 (an Fm-3m oxygen-deficient fluorite) does not display any long-range organization of the cations and vacancies though it does at the nanoscale: this system shows the highest radiation resistance and only extremes radiation levels trigger, besides a minor amorphization, the transformation another cubic structure, which was previously reported only during swift heavy ion irradiation of lanthanide sesquioxides (A2O3).