Results 281 to 290 of about 292,067 (328)

Normal ferroelectric to ferroelectric relaxor conversion in fluorinated polymers and the relaxor dynamics

Journal of Materials Science, 2006
To elucidate the molecular origin of the polarization dynamics in the ferroelectric relaxor poly(vinylidene fluoride—trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) terpolymer, a broadband dielectric study was carried out in the frequency range from 0.01 Hz to 10 MHz and temperatures from −150?C to 120?C for the terpolymer and a normal ...
Shihai Zhang, Rob J. Klein, Kailiang Ren, Baojin Chu, Xi Zhang, James Runt, Q. M. Zhang   +6 more
openaire   +1 more source

Superior Electrostrictive Effect in Relaxor Potassium Sodium Niobate Based Ferroelectrics.

ACS Applied Materials and Interfaces, 2020
Electromechanical actuators with toxic lead-based electrostrictive materials dominate the market of high-precision electronics devices, so one of urgent aims becomes how to explore the new generation of ecofriendly electrostrictive materials with ...
Bo Wu, Chunlin Zhao, Yanli Huang, Jie Yin, Wenjuan Wu, Jiagang Wu   +5 more
semanticscholar   +1 more source

Dielectric relaxor and ferroelectric relaxor: Bi-doped paraelectric SrTiO3

Journal of Applied Physics, 2002
In this article, we report the evolution of the dielectric behavior from a dielectric relaxor to a ferroelectric relaxor with variation of Bi concentration in (Sr1−1.5xBix)TiO3 (0⩽x⩽0.2). In the doping range 0.0005⩽x⩽0.002, two dielectric modes A and B are induced.
Chen Ang, Zhi Yu
openaire   +1 more source

Defect‐Driven Structural Distortions at the Surface of Relaxor Ferroelectrics

Advanced Functional Materials, 2019
Relaxor‐ferroelectric materials find application in a broad range of technological devices, including ultrasonic imaging transducers, nanopositioning, and high‐performance capacitors.
Scarlet Kong, Nitish Kumar, S. Checchia, C. Cazorla, J. Daniels   +4 more
semanticscholar   +1 more source

Relaxor ferroelectrics with lanthanum perovskites

ISAF '92: Proceedings of the Eighth IEEE International Symposium on Applications of Ferroelectrics, 2003
Lanthanum perovskite compounds La(B/sub 1/2//sup I/B/sub 1/2//sup II/)O/sub 3/ (B/sup I/=Ni,Co,Mg; B/sup II/=Ti) are studied as candidates for stabilizers to form perovskite-type Pb(Zn/sub 1/3/Nb/sub 2/3/)O/sub 3/ (PZN)-based ceramics. A conventional sintering technique is used to prepare ceramic samples with PZN-based solid solution. The ratios of the
T. Takenaka, T. Kanegae
openaire   +1 more source

Relaxor ferroelectrics and related superglasses

Ferroelectrics, 2019
AbstractMesoscopic ferroic glasses such as martensitic strain glass Ti50−x Ni50+x, magnetic cluster glass La0.7Ca0.3Mn0.7Cd0.3O3, and superdipolar relaxor PbMg1/3Nb2/3O3 (PMN) undergo glass transit...
Kleemann, Wolfgang, Dec, Jan
openaire   +2 more sources

Correlation of dielectric dispersion with distributed Curie temperature in relaxor ferroelectrics

Journal of Applied Physics, 2019
The fascinating dielectric property of relaxor ferroelectrics is investigated on the basis of phase-transition dynamics within the mean-field theory.
Yong Chen, Kanghui Liu, Q. Luo, Ming Mei, Ganlin Chen, R. K. Pan, Y. Qi, W. Cao   +7 more
semanticscholar   +1 more source

Barkhausen noise in relaxor ferroelectrics

SPIE Proceedings, 2003
Relaxor ferroelectrics form a diverse class of materials which typically show cooperative freezing into a nonergodic glassy state without long-range ferroelectric order. We discuss Barkhausen noise techniques in the non-ferroelectric regimes of the relaxors as a probe of the types of glassy order present.
Lambert K. Chao, Eugene V. Colla, Michael B. Weissman   +2 more
openaire   +1 more source

Dynamic response of relaxor ferroelectrics

Ferroelectrics, 2001
Abstract A dynamic spherical random-bond—random-field (SR-BRF) model based on the coupled polar cluster picture is formulated. Assuming stochastic flips of the cluster polarization, the Langevin equations of motion are written down, from which the linear and nonlinear dynamic dielectric permittivities are derived.
R. Pirc, R. Blinc, V. Bobnar
openaire   +1 more source

High energy storage capability of perovskite relaxor ferroelectrics via hierarchical optimization

Rare Metals, 2021
M. Zhang, Jun-Lei Qi, Yiqian Liu, Shun Lan, Zixi Luo, Haowei Pan, Yuan‐Hua Lin   +6 more
semanticscholar   +1 more source