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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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Veber, Philippe
West University of Timişoara
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2022Phase Transitions and Physical Properties of the Mixed Valence Iron Phosphate Fe3(PO3OH)4(H2O)4
- 2018Metastable ferroelectric phase and crossover in the Ba2NdFeNb4−xTaxO15 TTB solid solutioncitations
- 2018Spinodal decomposition in lead-free piezoelectric BaTiO3–CaTiO3–BaZrO3 crystalscitations
- 2018Spinodal Decomposition in Lead-free Piezoelectric BaTiO3 –CaTiO3 –BaZrO3 Crystalscitations
- 2016Orientation-dependent electromechanical properties of Mn-doped (Li,Na,K)(Nb,Ta)O3 single crystalscitations
- 2016Adjustable dielectric properties of BaTiO3 containing MgO inclusions deformable under Spark Plasma Sinteringcitations
- 2015Growth and Characterization of Lead-free Piezoelectric Single Crystalscitations
- 2014Growth and characterization of Ba2LnFeNb4O15 (Ln = Pr, Nd, Sm, Eu) relaxor single crystalscitations
- 2014Continuous cross-over from ferroelectric to relaxor state and piezoelectric properties of BaTiO3-BaZrO3-CaTiO3 single crystalscitations
- 2013Yb3+ doped Lu2O3 transparent ceramics by spark plasma sinteringcitations
- 2013Raman and fluorescence correlative microscopy in polarized light to probe local femtosecond laser-induced amorphization of the doped monoclinic crystal LYB:Eucitations
- 2013Growth and characterization of centimeter-sized Ba2LaFeNb4O15 crystals from high-temperature solution under a controlled atmospherecitations
- 2013Highlights on the Anisotropic Oxygen Transport Properties of Nickelates with K2NiF4-Type Structure: Links with the Electrochemical Properties of the Corresponding IT-SOFC's Cathodescitations
- 2012Structural analysis, growth and characterization of cadmiumgalliumtelluride (Cd0.89Ga0.11Te) thermoelectric semiconductor single crystals
- 2012Structuralanalysis, growth and characterization of cadmiumgalliumtelluride (Cd0.89Ga0.11Te) thermoelectric semiconductor single crystals
- 2012Cation ordering in the double tungstate LiFe(WO4)2citations
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article
Orientation-dependent electromechanical properties of Mn-doped (Li,Na,K)(Nb,Ta)O3 single crystals
Abstract
Orientation and temperature dependence of dielectric and electromechanical properties of Mn-doped (Li,Na,K)(Nb,Ta)O3 single crystals were investigated. Samples exhibited very low dielectric losses, with tanδ between 0.03 and 0.05 over a broad temperature range between room temperature and 480 °C. Influences of the crystallographic structure and external electric field on polarization and strain parameters are discussed. The orientation-dependent electrical properties were ascribed to the anisotropic polarization rotation in the crystals. Higher maximum polarization, coercive field, and negative strain were achieved when the electric field was oriented along one of the spontaneous polarization directions. The highest maximum unipolar strain of 0.42% (at 3 kV/mm) and the normalized strain d 33 * of 1391 pm/V were obtained in the [001]PC-oriented sample at 100 °C, which was much higher than the values obtained for the [110]PC-oriented sample. Further insight of the phase transition behavior is given by comparing the temperature-dependence of the small- and large-signal dielectric and piezoelectric properties. The observed changes are rationalized by the different increase rates of the dielectric permittivity and piezoelectric coefficients with temperature.