| People | Locations | Statistics |
|---|---|---|
| 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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Guennou, Mael
University of Luxembourg
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2023Strain engineering of the electro-optic effect in polycrystalline BiFeO3 filmscitations
- 2023Strain engineering of the electro-optic effect in polycrystalline BiFeO3 films [Invited]citations
- 2022Birefringence induced by antiferroelectric switching in transparent polycrystalline PbZr0.95Ti0.05O3 filmcitations
- 2021Patterning enhanced tetragonality in BiFeO3 thin films with effective negative pressure by helium implantationcitations
- 2021Crossover between distinct symmetries in solid solutions of rare earth nickelatescitations
- 2021Crossover between distinct symmetries in solid solutions of rare earth nickelatescitations
- 2020Mesoporous TiO2 anatase films for enhanced photocatalytic activity under UV and visible lightcitations
- 2020Optical studies of ferroelectric and ferroelastic domain walls
- 2020Optical studies of ferroelectric and ferroelastic domain wallscitations
- 2020Controlling electrical and optical properties of zinc oxide thin films grown by thermal atomic layer deposition with oxygen gascitations
- 2020Vibrational properties of LaNiO3 films in the ultrathin regimecitations
- 2018Effect of optical damage resistant dopants on the dielectric properties of LiNbO 3 :Insight from broadband impedance spectroscopy and Raman scatteringcitations
- 2017Control of surface potential at polar domain walls in a nonpolar oxidecitations
- 2014Jahn-Teller, Polarity, and Insulator-to-Metal Transition in BiMnO3 at High Pressurecitations
- 2010Intrinsic effect of Mn doping in PZN-12%PT single crystalscitations
- 20082T domain-engineered piezoelectric single crystals Calculations and application to PZN-12%PT poled along [101]citations
- 2007Modifying structural and electromechanical properties of piezoelectric PZN-xPT single crystals: domain engineering and manganese doping
Places of action
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article
Control of surface potential at polar domain walls in a nonpolar oxide
Abstract
International audience ; Ferroic domain walls could play an important role in microelectronics, given their nanometric size and often distinct functional properties. Until now, devices and device concepts were mostly based on mobile domain walls in ferromagnetic and ferroelectric materials. A less explored path is to make use of polar domain walls in nonpolar ferroelastic materials. Indeed, while the polar character of ferroelastic domain walls has been demonstrated, polarization control has been elusive. Here, we report evidence for the electrostatic signature of the domain-wall polarization in nonpolar calcium titanate (CaTiO 3). Macroscopic mechanical resonances excited by an ac electric field are observed as a signature of a piezoelectric response caused by polar walls. On the microscopic scale, the polarization in domain walls modifies the local surface potential of the sample. Through imaging of surface potential variations, we show that the potential at the domain wall can be controlled by electron injection. This could enable devices based on nondestructive information readout of surface potential.