Results 61 to 70 of about 2,097 (293)

Non-Linear Dielectric Properties of PLMN-PT Relaxor Ferroelectrics

, 2008
Recent investigations on the non-linear (NL) dielectric properties of relaxor ferroelectrics systems, not only as ceramic bodies, but also, in thin films, have showed a significant technological and scientific interest.
Souza, J. A., Garcia, D., Eiras, J. A., Guerra, J. D. S.   +3 more
core   +1 more source

Nanoscale phase quantification in lead-free (Bi1/2Na1/2)TiO₃-BaTiO₃ relaxor ferroelectrics by means of ²³Na NMR [PDF]

, 2023
We address the unsolved question on the structure of relaxor ferroelectrics at the atomic level by characterizing lead-free piezoceramic solid solutions (100−x)(Bi1/2Na1/2)TiO₃−xBaTiO₃ (BNT−xBT) (for x=1,4,6, and 15).
Jo, Wook, Sapper, Eva, Dittmer, Robert, Buntkowsky, Gerd, Breitzke, Hergen, Rödel, Jürgen, Groszewicz, Pedro B.   +6 more
core   +1 more source

Enhancement of Dielectric Breakdown Strength and Recoverable Energy Density in Three‐Dimensional Heterointerfaces on BaTiO3–PbZrO3–PbTiO3 Films via Room‐Temperature Nano‐Clustering

Advanced Functional Materials, EarlyView.
A room‐temperature aerosol deposition process yields multiphase nano‐clustered dielectric capacitors containing discrete BaTiO3, PbZrO3, and PbTiO3 crystals. This architecture creates three‐dimensional heterointerfaces that induce interfacial charge trapping and effectively inhibit breakdown propagation.
Hyunseok Song, Ke Xu, Donggeon Baek, Dayeong Hur, Minjae Kim, Hyun‐Cheol Song, Dae‐Yong Jeong, Houbing Huang, Jungho Ryu   +8 more
wiley   +1 more source

Mesoscale Domain Evolution Mechanism during Alternating Current (AC) Poling of Relaxor Ferroelectrics

Advanced Functional Materials, EarlyView.
Ferroelectric domain variants that are energetically equivalent are expected to remain preserved during polarization reversal. However, phase‐field simulations reveal that inclined domain walls in relaxor ferroelectrics can undergo irreversible elimination during alternating current poling through a proximity effect driven by long‐range elastic ...
Yuan‐Jie Sun, Bo Wang, Long‐Qing Chen   +2 more
wiley   +1 more source

Harnessing local inhomogeneity for enhanced dielectric energy storage

Nature Communications
Inorganic dielectric capacitors are highly demanded in pulsed systems due to their high-power output, but the low energy density limits device miniaturization.
Yiqian Liu, Bingbing Yang, Shun Lan, Zhifang Zhou, Lvye Dou, Ce-Wen Nan, Yuan-Hua Lin   +6 more
doaj   +1 more source

Local symmetry approach to relaxor ferroelectrics

, 2013
We propose a theoretical framework based on local gauge symmetries and develop a first-principles–derived effective Hamiltonian to study relaxor ferroelectrics.
I. Kornev, Nahas, Y., Y. Nahas, Kornev, I.   +3 more
core   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

Advanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong, You Zhou, Qingxiu Li, Wenyu Zhao, Sunyingyue Geng, Hangfei Li, Yan‐Bing Leng, Shirui Zhu, Guanglong Ding, Yongbiao Zhai, Ziyu Lv, Ye Zhou, Su‐Ting Han   +12 more
wiley   +1 more source

Investigation of complex phase transitions of relaxor ferroelectric PMN–28PT under combined electric field and temperature stimuli

Journal of Advanced Dielectrics
Relaxor ferroelectrics are an important class of functional materials because of their highly tunable dielectric permittivity, excellent temperature stability and low coercive field.
Long Cheng, Nicolas Guiblin, Oana Condurache, Brahim Dkhil, Minghai Yao, Ran Xu   +5 more
doaj   +1 more source

Dielectric properties of ceramics in lead zirconate titanate - lead magnesium niobate system [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2004
In this study, the xPb(Zr0.52Ti0.48)O3 - (1-x)Pb(Mg1/3Nb2/3)O3 (when x = 0, 0.1, 0.3, 0.5, 0.7, 0.9, and 1.0) ceramic composites are prepared from PZT and PMN powders by a conventional mixed-oxide method.
Pitak Laoratakul, Rattikorn Yimnirun, Supon Ananta   +2 more
doaj  

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

Advanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll, Ivan Pinto‐Huguet, Enzo Rotunno, Thomas Galvani, Catalina Coll, Payam Habibzadeh Kavkani, Maria Chiara Spadaro, Yann‐Michel Niquet, Martin Børstad Eriksen, Sara Martí‐Sánchez, Georgios Katsaros, Giordano Scappucci, Peter Krogstrup, Giovanni Isella, Andreu Cabot, Gonzalo Merino, Pablo Ordejón, Stephan Roche, Vincenzo Grillo, Jordi Arbiol   +19 more
wiley   +1 more source