| 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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Khomchenko, Va
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2011Isothermal structural transitions, magnetization and large piezoelectric response in Bi1-xLaxFeO3 perovskitescitations
- 2010Intermediate structural phases in rare-earth substituted BiFeO3citations
- 2010Effect of Gd substitution on ferroelectric and magnetic properties of Bi4Ti3O12citations
- 2009Correlation Between Ionic Radius of Substituting Element and Magnetic Properties of Bi(1-x)A(x)FeO(3-x/2) (A= Ca, Sr, Pb, Ba) Multiferroics
- 2009Doping strategies for increased performance in BiFeO3citations
- 2009Effect of Gd substitution on the crystal structure and multiferroic properties of BiFeO3citations
- 2009Crystal structure and magnetic properties of Bi-0.8(Gd1-xBax)(0.2)FeO3 (x=0, 0.5, 1) multiferroicscitations
- 2008Crystal structure and multiferroic properties of Gd-substituted BiFeO3citations
- 2008Intrinsic nature of the magnetization enhancement in heterovalently doped Bi(1-x)A(x)FeO(3) (A = Ca, Sr, Pb, Ba) multiferroicscitations
- 2008Coexistence of spontaneous ferroelectricity and weak ferromagnetism in Bi0.8Pb0.2FeO2.9 perovskitecitations
- 2008Effect of diamagnetic A2+ substitution on the magnetic and ferroelectric properties of the Bi1-xAxFeO3 multiferroics
- 2008Effect of diamagnetic Ca, Sr, Pb, and Ba substitution on the crystal structure and multiferroic properties of the BiFeO3 perovskitecitations
- 2008Weak ferromagnetism in diamagnetically-doped Bi(1-x)A(x)FeO(3) (A=Ca, Sr, Pb, Ba) multiferroicscitations
- 2007Synthesis and multiferroic properties of Bi(0.8)A(0.2)FeO(3) (A=Ca,Sr,Pb) ceramicscitations
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article
Isothermal structural transitions, magnetization and large piezoelectric response in Bi1-xLaxFeO3 perovskites
Abstract
We report on the discovery of an isothermal structural transition observed in Bi1-xLaxFeO3 (0.17 <= x <= 0.19) ceramics. At room temperature, an initially pure polar rhombohedral phase gradually transforms into a pure antipolar orthorhombic one. The polar phase can be recovered by annealing at T > 300 degrees C. In accordance with neutron powder diffraction data, an inverse isothermal antipolar-polar transition takes place at T > 300 degrees C, where the polar phase becomes more stable. The antipolar phase is characterized by a weak ferromagnetic state, whereas the polar phase has been obtained in a mixed antiferromagnet-weak ferromagnet state. The relatively low external pressure induces polar-antipolar transition, but there is no evidence of electric-field-driven antipolar-polar transition. The observed large local piezoelectric response is associated with structural instability of the polar phase, whereas local multistate piezoelectric loops can be related to the domain wall pinning effect.