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Andreazza, Pascal
Université d'Orléans
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Subcoercive-field dielectric response of 0.5 (Ba 0.7 Ca 0.3 TiO 3 ) -0.5 (BaZr 0.2 Ti 0.8 O 3 ) thin film: peculiar third harmonic signature of phase transitions and residual ferroelectricitycitations
- 2024BCTZ lead free thin films with Ce doping gradient: enhanced piezoelectricity and relaxor behaviour
- 2024Numerical vs Experimental Sputtering Deposition Phase formation prediction in magnetron sputtered Cu(Ti)Zn thin films : Numerical vs Experimental approaches
- 2024Enhanced piezoelectricity properties and relaxor behaviour in (Ce, Y) co-doped BCTZ thin films libraries
- 2023Subcoercive-field dielectric response of 0.5 (Ba 0.7 Ca 0.3 TiO 3 ) -0.5 (BaZr 0.2 Ti 0.8 O 3 ) thin film: peculiar third harmonic signature of phase transitions and residual ferroelectricity
- 2023Sudden collective atomic rearrangements trigger the growth of defect-free silver icosahedracitations
- 2023Combined atomistic simulations to explore metastability and substrate effects in Ag-Co nanoalloy systemscitations
- 2023Effect of Nanographene Coating on the Seebeck Coefficient of Mesoporous Siliconcitations
- 2022Out-of-equilibrium supported Pt-Co core-shell nanoparticles stabilized by kinetic trapping at room temperaturecitations
- 2022Combined atomistic simulations to explore metastability and substrate effects in Ag-Co nanoalloy systemscitations
- 2019Structural and chemical investigation of interface related magnetoelectric effect in Ni/BiFe0.95Mn0.05O3 heterostructurescitations
- 2013Cu-Doping Effect on Dielectric Properties of Organic Gel Synthesized Ba4YMn3-xCuxO11.5±δcitations
- 2012Cluster organization in co-sputtered carbon-platinum films as revealed by grazing incidence X-ray scatteringcitations
- 2012Trends in anomalous small-angle X-ray scattering in grazing incidence for supported nanoalloyed and core-shell metallic nanoparticlescitations
- 2004Laser treatment of a steel surface in ambient aircitations
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article
Cu-Doping Effect on Dielectric Properties of Organic Gel Synthesized Ba4YMn3-xCuxO11.5±δ
Abstract
International audience ; Copper doped-Ba4YMn3ÀxCuxO11.5 7 δ samples were synthesized by an organic gel assisted citrate process. X-ray diffraction of compositions with x .002, 0.005, 0.01, 0.02 and 0.04 does not reveal any change of hexagonal perovskite structure on doping. The effects of Cu-doping on the microstructure and dielectric properties were investigated. Cu doping modifies the electrical properties at the level of the impedance characteristics of both grain and grain boundary and to understand these different behaviours, we have carried out high-resolution transmission electron microscopy analysis.