Results 41 to 50 of about 390,189 (321)

Origin of the enhanced flexoelectricity of relaxor ferroelectrics [PDF]

Applied Physics Letters, 2014
We have measured the bending-induced polarization of Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals with compositions at the relaxor-ferroelectric phase boundary. The crystals display flexocoupling coefficients f > 100 V, an order of magnitude bigger than the theoretical upper limit set by the theories of Kogan and Tagantsev.
Jackeline Narvaez, Gustau Catalan
openaire   +3 more sources

Time-Resolved Nanobeam X-ray Diffraction of a Relaxor Ferroelectric Single Crystal under an Alternating Electric Field

Crystals, 2021
Lead-containing relaxor ferroelectrics show enormous piezoelectric capabilities relating to their heterogeneous structures. Time-resolved nanobeam X-ray diffraction reveals the time and position dependences of the local lattice strain on a relaxor ...
Shinobu Aoyagi, Ayumi Aoyagi, Hiroaki Takeda, Hitoshi Osawa, Kazushi Sumitani, Yasuhiko Imai, Shigeru Kimura   +6 more
doaj   +1 more source

High-temperature electromechanical actuation of relaxor ferroelectric polymers blended with normal ferroelectric polymer

Giant
Soft actuators that can operate at high temperatures are of great interest in emerging research fields such as microfluidics, soft robotics, automotive, aircraft, and bioelectronics.
Quang Van Duong, Chanho Park, Yujeong Lee, Seungmin Lee, Thu Thi Nguyen, Vinh Phu Nguyen, Kyuho Lee, Fabrice Domingues Dos Santos, Cheolmin Park, Seung Tae Choi   +9 more
doaj   +1 more source

Phase evolution and relaxor to ferroelectric phase transition boosting ultrahigh electrostrains in (1−x)(Bi1/2Na1/2)TiO3-x(Bi1/2K1/2)TiO3 solid solutions

Journal of Materiomics, 2021
Owing to the complex composition architecture of these solid solutions, some fundamental issues of the classical (1−x)Bi1/2Na1/2TiO-xBi1/2K1/2TiO3 (BNT-xBKT) binary system, such as details of phase evolution and optimal Na/K ratio associated with the ...
Ruiyi Jing, Lei-Yang Zhang, Qingyuan Hu, D. Alikin, V. Shur, Xiaoyong Wei, Lin Zhang, Gang Liu, Haibo Zhang, Li Jin   +9 more
semanticscholar   +1 more source

Robust Electrocaloric Performance Enabled by Highly‐Polar Frustrated Nanodomains in NaNbO3‐Based Ferrodistortive Relaxor

Advanced Functional Materials, EarlyView.
P4bm framework in NaNbO3‐Ba(Ti, Hf)O3 ferrodistortive relaxor entails short‐range and highly‐polar ferrodistortive orders. The abundant highly‐polar orders facilitate to increase entropy change, and robust octahedral oxygen tilt enables to impede thermal perturbations.
Feng Li, Changshun Dai, He Qi, Jiecheng Liu, Xiaoming Shi, Heng Zhou, Qiong Yang, Mingsheng Long, Lei Shan, Chunchang Wang, Jianli Wang, Zhenxiang Cheng   +11 more
wiley   +1 more source

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, Hanzheng Guo, Xiaoli Tan, John E. Daniels, Wook Jo   +4 more
doaj   +1 more source

Polarization behavior in a compositionally graded relaxor–ferroelectric crystal visualized by angle-resolved polarized Raman mapping

Communications Physics, 2023
Explaining the properties and functions of materials in terms of their atomic arrangements and inhomogeneous structures is a fundamental challenge for the development of ferroelectric oxides.
Shinya Tsukada, Yasuhiro Fujii, Akari Kanagawa, Yukikuni Akishige, Kenji Ohwada   +4 more
doaj   +1 more source

Ferroelectric tungsten bronze-based ceramics with high-energy storage performance via weakly coupled relaxor design and grain boundary optimization

Nature Communications
A multiscale regulation strategy has been demonstrated for synthetic energy storage enhancement in a tetragonal tungsten bronze structure ferroelectric.
Jiaming Liu, Ying Jiang, Weichen Zhang, Xu Cheng, Pei-Yao Zhao, Yi-Chao Zhen, Ya-Nan Hao, Li-Min Guo, K. Bi, Xiao-Hui Wang   +9 more
semanticscholar   +1 more source

Large Electrocaloric Effect in Stretched Relaxor Ferroelectric Polymers near Morphotropic Phase Boundary

Chemistry
Use of the morphotropic phase boundary (MPB) is a promising approach to enhance the electrocaloric effect in ferroelectric polymers. This is usually achieved by a composition method, and polymer processing near the MPB to tune electrocaloric response has
Linxiao Xu, Yuquan Liu, Jiahong Li, Hangyao Wu, Yuanqi Wang, Ze Yuan, Ling Cheng, Yang Li, Huamin Zhou, Yang Liu   +9 more
doaj   +1 more source

Microscopia de força piezoeléctrica de relaxors ferroeléctricos [PDF]

, 2010
Doutoramento em Ciência e Engenharia de MateriaisNesta tese, ferroeléctricos relaxor (I dont know uf the order is correct) de base Pb das familias (Pb,La)(Zr,Ti)O3 (PLZT), Pb(Mg1/3,Nb2/3)O3-PbTiO3 (PMN-PT), Pb(Zn1/3,Nb2/3)O3-PbTiO3 (PZN-PT) foram ...
Kiselev, Dmitry
core