| 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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Simons, Hugh
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Coupled local residual shear and compressive strain in NaNbO 3 ceramics under coolingcitations
- 2024Heterogeneous Antiferroelectric Ordering in NaNbO3-SrSnO3 Ceramics Revealed by Direct Superstructure Imaging
- 2024Heterogeneous Antiferroelectric Ordering in NaNbO 3 –SrSnO 3 Ceramics Revealed by Direct Superstructure Imaging
- 2024Coupled local residual shear and compressive strain in NaNbO3 ceramics under coolingcitations
- 2022Unveiling the Interaction Mechanisms of Electron and X-ray Radiation with Halide Perovskite Semiconductors using Scanning Nanoprobe Diffractioncitations
- 2022Unveiling the interaction mechanisms of electron and X-ray radiation with halide perovskite semiconductors using scanning nano-probe diffraction
- 2022Unveiling the interaction mechanisms of electron and X-ray radiation with halide perovskite semiconductors using scanning nano-probe diffraction
- 2021Bulk heterogeneity in barium titanate above the Curie temperaturecitations
- 2021Dislocation-toughened ceramicscitations
- 2020Thermal and electric field stability of square-net domain patterns in barium titanate
- 2020Effect of alloying BaTiO 3 with BiZn 1/2 Ti 1/2 O 3 on polarization reversalcitations
- 2019Sub-surface measurements of the austenite microstructure in response to martensitic phase transformationcitations
- 2018Dynamics and grain orientation dependence of the electric field induced phase transformation in Sm modified BiFeO 3 ceramicscitations
- 2017Ultra-low-angle boundary networks within recrystallizing grainscitations
- 2016Dual strain mechanisms in a lead-free morphotropic phase boundary ferroelectriccitations
- 2015Injection molded polymeric hard X-ray lensescitations
- 2013Tailoring the piezoelectric and relaxor properties of (Bi 1/2 Na 1/2 ) TiO 3 - BaTiO 3 via zirconium dopingcitations
Places of action
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article
Bulk heterogeneity in barium titanate above the Curie temperature
Abstract
We use dark-field x-ray microscopy to reveal evidence of subtle structural heterogeneity in BaTiO3 single crystals at temperatures of 150 °C—well above the Curie temperature of 125 °C. The heterogeneity exhibits domain-like ordering on the scale of several micrometers, pronounced curvature, and a preference for ⟨110⟩ lattice directions. Complementary high-resolution x-ray reciprocal space measurements suggest that the features originate from point defects (most likely oxygen vacancies) that coalesce along pre-existing domain walls during aging. A simple thermodynamic model suggests that the weak elastic strains associated with the heterogeneity are likely to locally raise the Curie temperature in their vicinity, creating nucleation sites for the ferroelectric phase upon cooling through the ferroelectric phase transition.