Results 61 to 70 of about 908 (161)

Dipolar Nematic State in Relaxor Ferroelectrics

open access: yesPhysical Review X
Relaxor ferroelectrics exhibit exceptional dielectric and electromechanical properties, yet their microscopic origins remain elusive due to the interplay of hierarchical polar structures and chemical complexity. While models based on polar nanoregions or
Yuan-Jinsheng Liu   +2 more
doaj   +1 more source

Why is the electrocaloric effect so small in ferroelectrics?

open access: yesAPL Materials, 2016
Ferroelectrics are attractive candidate materials for environmentally friendly solid state refrigeration free of greenhouse gases. Their thermal response upon variations of external electric fields is largest in the vicinity of their phase transitions ...
G. G. Guzmán-Verri, P. B. Littlewood
doaj   +1 more source

Relaxor behavior in rocksalt cation-ordered material induced by (anti)ferroelectric phase competition

open access: yesNature Communications
Relaxor ferroelectrics are characterized by dispersion of the temperature-dependent dielectric constant with frequency and enhanced electromechanical coupling.
Yu Yun   +17 more
doaj   +1 more source

Emergence of high piezoelectricity from competing local polar order-disorder in relaxor ferroelectrics. [PDF]

open access: yesNat Commun, 2023
Liu H   +14 more
europepmc   +1 more source

Author Correction: Deciphering the atomic-scale structural origin for large dynamic electromechanical response in lead-free Bi0.5Na0.5TiO3-based relaxor ferroelectrics. [PDF]

open access: yesNat Commun, 2023
Yin J   +14 more
europepmc   +1 more source

Li+ and Nb5+ codoped BNT-based ceramic with ultrahigh electrostrain under a moderate electric field

open access: yesJournal of Advanced Ceramics
Lead-free piezoceramics have been an important research topic over the past two decades, aiming to replace Pb-based piezoceramics for sensor and actuator applications.
Zhengxiu Ma   +6 more
doaj   +1 more source

Author Correction: Deciphering the atomic-scale structural origin for large dynamic electromechanical response in lead-free Bi0.5Na0.5TiO3-based relaxor ferroelectrics. [PDF]

open access: yesNat Commun, 2022
Yin J   +14 more
europepmc   +1 more source

Poling-free relaxor-PbTiO3 single crystals

open access: yesJournal of Materiomics
Relaxor-PbTiO3 ferroelectric single crystals have drawn attention aiming at high-end piezoelectric applications thanks to their excellent piezoelectric properties.
Hwang-Pill Kim   +8 more
doaj   +1 more source

Dielectric and electrostrictive properties of ferroelectric relaxors

open access: yesArchives of Acoustics, 2014
On the basis of ferroelectric relaxors electrostrictive ceramics has been obtained. Searching for electrostrictive ceramic transducers with optimal electromechanical parameters include the following: 1) investigation of different types of complex oxides with the perovskite structure (OPS): ferroelectric, antiferroelectric, non-polar; 2) investigation ...
Surowiak, Zygmunt   +2 more
openaire   +3 more sources

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