Results 11 to 20 of about 908 (161)

Dielectric and electro-mechanic nonlinearities in perovskite oxide ferroelectrics, relaxors, and relaxor ferroelectrics [PDF]

open access: yesJournal of Applied Physics, 2021
The polarization and strain response of ferroelectric materials at electric fields below the macroscopic coercive field is of paramount importance for the operation of many electronic devices. The response of real ferroelectric and related materials is, in general, complex and difficult to interpret.
Lukas M. Riemer   +5 more
openaire   +2 more sources

Piezoelectric response of disordered lead-based relaxor ferroelectrics

open access: yesCommunications Materials, 2023
Lead-based relaxor ferroelectrics are known for their large piezoelectric response, but the relation between the response and the nanoscale structure of these materials is still under debate. In this Perspective, the microscopic implications of the polar
Tadej Rojac
doaj   +1 more source

Observation of Micro-Scale Domain Structure Evolution under Electric Bias in Relaxor-Based PIN-PMN-PT Single Crystals

open access: yesCrystals, 2023
Relaxor ferroelectrics play a vital role as functional components in electromechanical devices. The observation of micro-scale domain structure evolution under electric bias in relaxor ferroelectrics has posed challenges due to their complex domain ...
Kai Li   +11 more
doaj   +1 more source

Multi elements substituted Aurivillius phase relaxor ferroelectrics using high entropy design concept

open access: yesMaterials & Design, 2021
The concept of high entropy ceramics opens up the possibility to optimise the properties of relaxor ferroelectrics with Aurivilius phase structures. In this paper, two new multi-element substituted Aurivillius phase ceramics, (Ca0.25Sr0.25Ba0.25Pb0.25 ...
Man Zhang   +5 more
doaj   +1 more source

A Bi1/2K1/2TiO3-based ergodic relaxor ceramic for temperature-stable energy storage applications

open access: yesMaterials & Design, 2021
Relaxor ferroelectrics are attractive for the high energy storage density. However, the polarization responses of most relaxor ferroelectrics are sensitive to temperature, thus leading to thermal-dependent energy storage properties.
Yongxing Wei   +8 more
doaj   +1 more source

Barkhausen Noise in a Relaxor Ferroelectric [PDF]

open access: yesPhysical Review Letters, 2001
Barkhausen noise, including both periodic and aperiodic components, is found in and near the relaxor regime of a familiar relaxor ferroelectric, PbMg$_{1/3}$Nb$_{2/3}$O$_3$, driven by a periodic electric field. The temperature dependences of both the amplitude and spectral form show that the size of the coherent dipole moment changes shrink as the ...
Colla, Eugene V.   +2 more
openaire   +3 more sources

Domain structure and dielectric diffusion-relaxation characteristics of ternary PbO3–PbO3–PbTiO3 ceramics

open access: yesJournal of Advanced Dielectrics, 2022
Relaxor-based ternary Pb([Formula: see text][Formula: see text])O3–Pb([Formula: see text][Formula: see text])O3–PbTiO3 (PIN–PMN–PT) single crystals and ceramics are promising candidates for high-performance electromechanical conversion devices.
Xudong Qi   +5 more
doaj   +1 more source

Revealing the role of the constant phase element in relaxor ferroelectrics

open access: yesCommunications 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

Large energy density and high efficiency achieved simultaneously in Bi(Mg0.5Hf0.5)O3-modified NaNbO3 ceramics

open access: yesResults 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

Paraelectric and ferroelectric states in a model for relaxor ferroelectrics [PDF]

open access: yesPhysical Review B, 2013
10 pages, 7 ...
Guzmán-Verri, G. G.   +2 more
openaire   +2 more sources

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