| 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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Molina-Luna, Leopoldo
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (30/30 displayed)
- 2023A machine learning framework for quantifying chemical segregation and microstructural features in atom probe tomography data
- 2023Operando two-terminal devices inside a transmission electron microscopecitations
- 2023Hard and tough novel high-pressure $γ-Si_3N_4/Hf_3N_4$ ceramic nanocompositescitations
- 2023Dissipation losses limiting first-order phase transition materials in cryogenic caloric cooling: A case study on all-d-metal Ni(-Co)-Mn-Ti Heusler alloys
- 2023Role of kinetic energy on Nb3Sn thin films by low-temperature co-sputtering
- 2023A Machine Learning Framework for Quantifying Chemical Segregation and Microstructural Features in Atom Probe Tomography Datacitations
- 2022Evidence for antipolar displacements in NaNbO3 thin filmscitations
- 2022Single-source-precursor derived bulk Si3N4HfBxN(1-x) ceramic nanocomposites with excellent oxidation resistancecitations
- 2022A Novel Magnetic Hardening Mechanism for Nd‐Fe‐B Permanent Magnets Based on Solid‐State Phase Transformation
- 2021Domain morphology of newly designed lead-free antiferroelectric NaNbO3-SrSnO3 ceramicscitations
- 2020Tailoring the Switching Dynamics in Yttrium Oxide‐Based RRAM Devices by Oxygen Engineering: From Digital to Multi‐Level Quantization toward Analog Switchingcitations
- 2020Electric-field-induced antiferroelectric to ferroelectric phase transition in polycrystalline NaNbO3citations
- 2019Empowering Electroless Plating to Produce Silver Nanoparticle Films for DNA Biosensing Using Localized Surface Plasmon Resonance Spectroscopycitations
- 2019Experimental and computational analysis of binary Fe-Sn ferromagnetic compoundscitations
- 2018Designing properties of (Na1/2Bix) TiO3-based materials through A-site non-stoichiometry
- 2018Enabling nanoscale flexoelectricity at extreme temperature by tuning cation diffusioncitations
- 2017Multilayer lead-free piezoceramic compositescitations
- 2016Planar Arrays of Nanoporous Gold Nanowires: When Electrochemical Dealloying Meets Nanopatterning.citations
- 2016Formation of the core-shell microstructure in lead-free Bi1/2Na1/2TiO3-SrTiO3 piezoceramics and its influence on the electromechanical propertiescitations
- 2016Steering atomic diffusion in oxide nanotubes in situ via a direct control of local defects created by e-beam irradiation
- 2015Temperature-dependent R-curve behavior of the lead-free ferroelectric 0.615Ba(Zr0.2Ti0.8)O-3-0.385(Ba0.7Ca0.3)TiO3 ceramiccitations
- 2015Core-Shell Lead-Free Piezoelectric Ceramics: Current Status and Advanced Characterization of the Bi1/2Na1/2TiO3-SrTiO3 System
- 2015Enhancing Electromechanical Properties of Lead-Free Ferroelectrics With Bilayer Ceramic/Ceramic Compositescitations
- 2015BaHfO3 artificial pinning centres in TFA-MOD-derived YBCO and GdBCO thin filmscitations
- 2015Unusual dealloying effect in gold/copper alloy thin films: the role of defects and column boundaries in the formation of nanoporous gold.citations
- 2015The Kirkendall Effect in Binary Alloys: Trapping Gold in Copper Oxide Nanoshellscitations
- 2014Zn based nanoparticle-carbon nanotube hybrid materials: Interaction and charge transfercitations
- 2014Electron Beam Nanosculpting of Kirkendall Oxide Nanochannelscitations
- 2014Zn based nanoparticle-carbon nanotube hybrid materialscitations
- 2014Zn based nanoparticle-carbon nanotube hybrid materials:Interaction and charge transfercitations
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article
Electric-field-induced antiferroelectric to ferroelectric phase transition in polycrystalline NaNbO3
Abstract
<p>Electric-field-induced phase transitions are the most important characteristics of antiferroelectric materials. However, in several prototype antiferroelectrics, these transitions are irreversible and the origin of this behavior is poorly understood. This prevents their widespread use, for example, in energy storage and memory applications. Here, we investigated the antiferroelectric-ferroelectric phase transitions in polycrystalline NaNbO<sub>3</sub>, a material recently suggested as the basis for lead-free antiferroelectrics with high energy storage densities. An irreversible transition from the antiferroelectric state to a new state showing macroscopic piezoelectricity (d<sub>33</sub>=35 pC/N) was induced at 11.6 kV/mm (room temperature, 1 Hz), accompanied by a 33% drop in permittivity. Microscopically, a change from a translational antiferroelectric domain structure to a wedge-shaped ferroelectric domain structure was observed using transmission electron microscopy. <sup>23</sup>Na solid-state nuclear magnetic resonance allowed for a detailed study of the local structure and revealed pure antiferroelectric and coexisting antiferroelectric/ferroelectric nature of the samples before and after the application of an electric field, respectively. Interestingly, despite the large electric fields applied, only 50±5% of the material underwent the antiferroelectric-ferroelectric phase transition, which was related to the material´s microstructure. The temperature- and frequency-dependence of the phase transition was studied and compared to the behavior observed in lead-based antiferroelectric systems.</p>