Results 21 to 30 of about 5,651 (284)
Results in Physics, 2023 A novel lead-free relaxor ferroelectric ceramics, (1-x)NaNbO3-xBi(Mg0.5Hf0.5)O3 [NN-xBMH, x = 0.00, 0.05, 0.10, 0.15, 0.20 and 0.25] were designed and fabricated for the first time via the standard solid-phase reaction method.
Siyuan Zhang +5 more
doaj +1 more source
Revealing the role of the constant phase element in relaxor ferroelectrics
Communications Physics, 2022 Relaxor ferroelectrics are a type of material exhibiting electrostriction whereby a change in the material shape occurs under an applied electric field; however, although known by the community for many years the underlying mechanisms of the phenomenon ...
Xavier Vendrell +3 more
doaj +1 more source
Crystals, 2023 Relaxor-type ferroelectrics show important potential in energy storage fields due to their significantly enhanced energy performance and good temperature stability compared to normal ferroelectrics. Here, a novel, high-performance ternary composition, (0.
Hao Zhang +6 more
doaj +1 more source
Nature Communications, 2022 High-drive electromechanical applications require ferroelectrics accounting for a large coercive field and high piezoelectricity simultaneously but it is still a challenge. Here, the authors demonstrate it in a relaxor-based ferroelectric crystal.
Liya Yang +14 more
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Synchrotron x-ray Studies of Superlattice Ordering in Pb(Mg1/3Nb2/3)O3 Single Crystals Doped with PbTiO3 [PDF]
, 2003 The temperature dependence of the superlattice reflections: a) F spots and b) alpha spots in a lead magnesium niobate (PMN) single crystals containing 0% and 6% of PbTiO3 (PT) has been studied using synchrotron x-ray scattering techniques.
Chen, Haydn +3 more
core +2 more sources
Polarization reversal via a transient relaxor state in nonergodic relaxors near freezing temperature
Journal of Materiomics, 2019 Among the unresolved issues in the study of relaxor ferroelectrics is the role of freezing temperature, across which the dynamics of polarization reversal in relaxor ferroelectrics changes.
Chang-Hyo Hong +4 more
doaj +1 more source
Ferroelectric Relaxor Quantum Crystals [PDF]
Crystals, 2018 A discussion is given of ferroelectrics (FEs) that have their Curie temperatures Tc very near absolute zero. These have differences in their dynamics in comparison with higher-temperature systems, since domain wall motion occurs via quantum mechanical tunneling and not by thermally activated diffusion.
openaire +4 more sources
Giant dynamic electromechanical response via field driven pseudo-ergodicity in nonergodic relaxors
Nature Communications, 2023 Enhanced electromechanical response can commonly be found during the crossover from normal to relaxor ferroelectric state, making relaxors to be potential candidates for actuators.
He Qi +5 more
doaj +1 more source
Origin of dielectric relaxor behavior in PVDF-based copolymer and terpolymer films
AIP Advances, 2018 Relaxor ferroelectrics exhibit frequency-dispersion of their dielectric permittivity peak as a function of temperature, the origin of which has been widely debated. Microscopic understanding of such behavior for polymeric ferroelectrics has presented new
Abhijit Pramanick +8 more
doaj +1 more source
Journal of Materiomics, 2018 Novel A-site deficient (1-x-y)Bi0.5Na0.5TiO3-xBaTiO3-yBi0.2Sr0.7TiO3 lead-free relaxor ferroelectrics have been explored for energy storage property. Particularly slim polarization hysteresis (P-E) loops are observed in 0.655Bi0.5Na0.5TiO3-0.065BaTiO3-0 ...
Xiao Liu +6 more
doaj +1 more source