Results 81 to 90 of about 27,906 (302)

Polarons, free charge localisation and effective dielectric permittivity in oxides

, 2010
This review will deal with several types of free charge localisation in oxides and their consequences on the effective dielectric spectra of such materials.
Maglione, Mario
core   +1 more source

Development of Ferroelectric Order in Relaxor (1-x)Pb(Mg1/3Nb2/3)O3 - xPbTiO3

, 2002
The microstructure and phase transition in relaxor ferroelectric Pb(Mg1/3Nb2/3)O3 (PMN) and its solid solution with PbTiO3 (PT), PMN-xPT, remain to be one of the most puzzling issues of solid state science.
A. A. Bokov, A. A. Bokov, A. A. Bokov, A. A. Bokov, A. A. Bokov, A. A. Bokov, A. A. Bokov, B. Dkhil, B. Noheda, B. Noheda, B. Noheda, C.-S. Tu, D. Viehland, E. V. Colla, G. Burns, G. Calvarin, G. K. Williamson, G. Shirane, H. Arndt, J. Gao, K. Fujishiro, K. Hirota, L. Bellaiche, L. E. Cross, L. W. Finger, N. de Mathan, O. Bunina, O. Didault, O. Noblanc, P. Bonneau, P. M. Gehring, P. Stephens, R. Blinc, R. D. Shannon, R. E. Newhnam, R. Pirc, S. B. Vakhrushev, S. J. Jang, S. L. Swartz, S. W. Choi, S. Wakimoto, S.-E. Park, S.-E. Park, T. Shrout, T. Y. Koo, V. Westphal, W. Kleemann, Y. Bing, Y. Imry, Y. Uesu, Z.-G. Ye, Z.-G. Ye, Z.-G. Ye, Z.-G. Ye, Z.-G. Ye   +54 more
core   +1 more source

Piezo‐Phototronic PVDF/HfO2/Nano‐Cu Heterostructured Thin Film for Flexible Self‐Powered Multimodal Sensing

Advanced Science, EarlyView.
Electrospinning a composite of PVDF, HfO2, and nano‐Cu transforms the discrete precursors into a continuous nanofiber mesh, forming a multi‐interface heterostructure with embedded nanoparticles. The presence of HfO2 and nano‐Cu at the fiber interfaces induces a highly aligned β‐phase, which enhances piezoelectric crystallinity and improves the material'
Jiawei Gu, Qiongle Peng, Xuanqi Zhong, Yi Zheng, Zhiqiang Ma, Xiaoxian Song, Ruihuan Zhang, Bao Liu, Yanhu Zhang, Zhengbao Yang   +9 more
wiley   +1 more source

Ferroelectric‐Polarization‐Driven Structural Engineering of Bi3Nb17O47 Anodes for High‐Performance Lithium‐Ion Batteries

Advanced Science, EarlyView.
A transformative ferroelectric‐polarization strategy is employed to overcome the intrinsic limitations of tungsten bronze (TTB)‐type anode materials in metal‐ion batteries, using Bi3Nb17O47 as a model system. By exploiting the non‐centrosymmetric crystal structure and field‐induced ionic displacements, controlled structural engineering with ...
Xiaoming Lou, Songjie Li, Chunfu Lin, Yanchao Li, Mingze Sun, Zhen Liu, Weiye Nie, Xiaolong Tang, Baoming Wang, Wenwu Cao, Renchao Che   +10 more
wiley   +1 more source

Electric-field-induced phase transition of <001> oriented Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystals

, 2002
oriented 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 single crystals were poled under different electric fields, i.e. Epoling=4 kV/cm and Epoling=13 kV/cm. In addition to the temperature-dependent dielectric constant measurement, X-ray diffraction was also used to ...
Cullity B D, Hao-Su Luo, Ke-Pi Chen, Kleemann W, Kuwata J, Kuwata J, Noheda B, Noheda B, Singh A K, Xiao-Wen Zhang, Zhang X W   +10 more
core   +1 more source

High‐Entropy Chemical Composition Design for Ultrahigh Capacitive Energy Storage

Advanced Science, EarlyView.
La‐donor doping suppresses defect charges and reduces domain size via local random fields. Conversely, NaNbO3 addition in BNT‐based ceramics stabilizes the orthorhombic phase. This creates R‐O‐T multiphase polar nanoregions within a cubic matrix, which lowers the energy barrier, delays polarization saturation, and enables a high breakdown strength ...
Muhammad Habib, Haoyu Wang, Weisan Fang, Attaur Rahman, Maqbool Ur Rehman, Ting Wang, Qingfeng Zhu, Muhammad Javid Iqbal, Xiaoming Shi, He Qi, Weiping Gong   +10 more
wiley   +1 more source

Photostrictive materials

, 2015
Light-matter interactions that lead to nonthermal changes in size of the sample constitute a photostrictive effect in many compounds. The photostriction phenomenon was observed in four main groups of materials, ferroelectrics, polar, and non-polar ...
Kundys, B.
core   +1 more source

Neural Network‐Based Permittivity Engineering of Magnetic Absorbers for Customizable Microwave Absorption

Advanced Science, EarlyView.
A neural network‐enabled permittivity engineering paradigm is introduced, transcending traditional trial‐and‐error design. By decoupling electromagnetic parameters and screening a high‐throughput feature space, an ultrathin (1.0 mm) magnetic absorber is inversely designed, experimentally achieving a superior and customizable 5.1 GHz bandwidth and ...
Chenxi Liu, Jinzhe Li, Sen Li, Zhongqiu Guo, Yao Chen, Tian Li, Renchi Qin, Jiaxu Sun, Yongxi Lu, Fanbin Meng   +9 more
wiley   +1 more source

Ultrahigh High‐temperature Capacitive Energy Storage Via Proton Irradiation

Advanced Science, EarlyView.
Proton irradiation concurrently induces enhanced dielectric constant and breakdown field in aromatic polymers with ether bonds, which enables an ultrahigh discharged energy density of 6.9 J cm−3 at above the efficiency of 95% at 150 °C, exceeding current dielectric polymers and nanocomposites.
Chenyi Li, Hanxiao Gao, Yutie Gong, Yen‐Ting Lin, Yuquan Liu, Yuanqi Wang, Lan Chen, Hangyao Wu, Ling Cheng, Yang Li, Yang Liu, Huamin Zhou   +11 more
wiley   +1 more source

Composition dependence of giant electrocaloric effect in PbxSr1-xTiO3 ceramics for energy-related applications

Journal of Materiomics, 2019
PbxSr1-xTiO3 (x = 0.30, 0.35, 0.40, 0.45, 0.50 and 0.55) ceramics were fabricated by a solid-state reaction route. X–ray diffraction data at room temperature show PST samples shift from cubic to tetragonal phase with the increase of Pb2+ content.
Peng-Zu Ge, Xiao-Dong Jian, Xiong-Wei Lin, Xin-Gui Tang, Zhi Zhu, Qiu-Xiang Liu, Yan-Ping Jiang, Tian-Fu Zhang, Sheng-Guo Lu   +8 more
doaj   +1 more source