| 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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Spreitzer, Matjaž
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024Characterization and Mechanical Properties of Sintered Clay Minerals
- 2024Thermally Stable Capacitive Energy-Density and Colossal Electrocaloric and Pyroelectric Effects of Sm-Doped Pb(Mg 1/3 Nb 2/3 )O 3 –PbTiO 3 Thin Filmscitations
- 2023Epitaxial oxides on semiconductors: growth perspectives and device applications
- 2023Non-stoichiometry and its implications for the properties of PMN–PT thin filmscitations
- 2023Thermoelectric properties of pseudobrookite-based ceramics prepared from natural Fe-Ti-rich heavy mineral sand concentratecitations
- 2023Thermoelectric properties of pseudobrookite-based ceramics prepared from natural Fe-Ti-rich heavy mineral sand concentratecitations
- 2023Removal of copper and iron from ethanolic solutions by an anion exchange resin and its implication to rare-earth magnet recyclingcitations
- 2023Perpendicular magnetic anisotropy at room-temperature in sputtered a-Si/Ni/a-Si layered structure with thick Ni (nickel) layerscitations
- 2022The paradigm of the filler's dielectric permittivity and aspect ratio in high-k polymer nanocomposites for energy storage applicationscitations
- 2022Novel lead-free BCZT-based ceramic with thermally-stable recovered energy density and increased energy storage efficiencycitations
- 2022A flexible self-poled piezocomposite nanogenerator based on H 2 (Zr 0.1 Ti 0.9 ) 3 O 7 nanowires and polylactic acid biopolymercitations
- 2022Large imprint in epitaxial 0.67Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>-0.33PbTiO<sub>3</sub> thin films for piezoelectric energy harvesting applicationscitations
- 2022The paradigm of the filler's dielectric permittivity and aspect ratio in high- k polymer nanocomposites for energy storage applicationscitations
- 2022Solvothermal synthesis of zinc- and gallium-substituted cobalt ferrite nanoparticles
- 2021Synthesis, structure and electrochemical performance of NiMn2O4
- 2021The influence of heteroatoms on physicochemical properties of cobalt ferrite nanoparticles
- 2021Dielectric properties of upside-down SrTiO3/Li2MoO4 composites fabricated at room temperaturecitations
- 2021Innovative Gold/Cobalt Ferrite Nanocomposite: Physicochemical and Cytotoxicity Propertiescitations
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article
Large imprint in epitaxial 0.67Pb(Mg<sub>1/3</sub>Nb<sub>2/3</sub>)O<sub>3</sub>-0.33PbTiO<sub>3</sub> thin films for piezoelectric energy harvesting applications
Abstract
<jats:p> Tuning and stabilizing a large imprint in epitaxial relaxor ferroelectric thin films is one of the key factors for designing micro-electromechanical devices with an enhanced figure of merit (FOM). In this work, epitaxial 500 nm-thick 0.67Pb(Mg<jats:sub>1/3</jats:sub>Nb<jats:sub>2/3</jats:sub>)O<jats:sub>3</jats:sub>–0.33PbTiO<jats:sub>3</jats:sub> (PMN–33PT) films, free from secondary phases and with extremely low rocking curves (FWHM < 0.05°), are grown on ScSmO<jats:sub>3</jats:sub> (SSO) and DyScO<jats:sub>3</jats:sub> (DSO) substrates buffered with SrRuO<jats:sub>3</jats:sub> (SRO). The PMN–33PT is observed to grow coherently on SSO substrates (lattice mismatch of −0.7%), which is c-axis oriented and exhibits large tetragonality compared to bulk PMN–33PT, while on DSO substrates (lattice mismatch of −1.9%), the PMN–33PT film is almost completely relaxed and shows reduced tetragonality. Due to the compressive epitaxial strain, the fully strained PMN–33PT film displays typical ferroelectric P–E hysteresis loops, while the relaxed sample shows relaxor-like P–E loops. Samples present large negative imprints of about −88.50 and −49.25 kV/cm for PMN–33PT/SRO/SSO and PMN–33PT/SRO/DSO, respectively, which is more than threefold higher than the coercive field. The imprint is induced by the alignment of defect dipoles with the polarization and is tuned by the epitaxial strain. It permits the stabilization of a robust positive polarization state (P<jats:sub>r</jats:sub> ∼ 20 μC/cm<jats:sup>2</jats:sup>) and low dielectric permittivity (<700). In addition, the relaxed PMN–33PT film shows improved piezoelectric properties, with a 33% enhancement in d<jats:sub>33,eff</jats:sub> relative to the fully strained sample. The obtained low dielectric permittivity and the high piezoelectric coefficients at zero electric field in the studied PMN–33PT films hold great promise to maximize the FOM toward applications in piezoelectric devices. </jats:p>