Results 71 to 80 of about 288,002 (309)

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  

Structural and ferroelectric properties of Sr1−xBaxBi2Nb2O9 thin films obtained by dip-coating [PDF]

Journal of Advanced Dielectrics, 2017
The paper presents the structural and ferroelectric results for Sr1−xBaxBi2Nb2O9(x=0.30; 0.85) thin films, which were obtained by using dip-coating.
Y. González-Abreu, A. Peláiz-Barranco, P. Saint-Grégoire, C. E. Moreno-Crespo, H. Limborço, J. C. González   +5 more
doaj   +1 more source

A Novel Approach to Implementing Artificial Thalamic Neurons with Ferroelectric Transistors

Advanced Functional Materials, EarlyView.
Artificial neurons created using CMOS technology often require a large number of transistors and capacitors. This study introduces an artificial thalamic neuron that employs only five CMOS compatible ferroelectric transistors. The manufactured thalamic neuron demonstrates leaky integrate‐and‐fire‐or‐burst (LIFB) functionalities, featuring self ...
Andreas Grenmyr, Jiayuan Zhang, Jingxuan Sun, Kenta Moto, Stefan Wiefels, Seong‐Ryong Koh, Detlev Grützmacher, Qing‐Tai Zhao   +7 more
wiley   +1 more source

Two-step phase changes in cubic relaxor ferroelectrics

, 2005
The field-driven conversion between the zero-field-cooled frozen relaxor state and a ferroelectric state of several cubic relaxors is found to occur in at least two distinct steps, after a period of creep, as a function of time.
B. Dkhil, E. V. Colla, E. V. Colla, Eugene V. Colla, L. E. Cross, M. B. Weissman, M. B. Weissman, S. Vakhrushev   +7 more
core   +1 more source

Integration of Perovskite/Low‐Dimensional Material Heterostructures for Optoelectronics and Artificial Visual Systems

Advanced Functional Materials, EarlyView.
Heterojunctions combining halide perovskites with low‐dimensional materials enhance optoelectronic devices by enabling precise charge control and improving efficiency, stability, and speed. These synergies advance flexible electronics, wearable sensors, and neuromorphic computing, mimicking biological vision for real‐time image analysis and intelligent
Yu‐Jin Du, Junjie Yang, Ziyu Lv, Yongbiao Zhai, Zezhuang Yi, Yuhui Xie, Ming‐Lin Zheng, Xiangyu Ma, Guodong Gong, Yan Wang, Ye Zhou, Su‐Ting Han   +11 more
wiley   +1 more source

The polarizability model for ferroelectricity in perovskite oxides

, 2012
This article reviews the polarizability model and its applications to ferroelectric perovskite oxides. The motivation for the introduction of the model is discussed and nonlinear oxygen ion polarizability effects and their lattice dynamical ...
Akbas M K, Anderson P W, Annette Bussmann-Holder, Axe J D, Biltz H, Bishop A R, Bussmann-Holder A, Bussmann-Holder A, Bussmann-Holder A, Büttner H, Calogero F, Cowley R A, Devonshire A F, Devonshire A F, Dolgov A S, Floria L M, Ginzburg V L, Ginzburg V L, Groetsch C W, Kamba S, Kamba S, Kim T H, Kladko K, Kwapuliński J, Kwapuliński J, Laiho R, Lines M E, Macutkevic J, Migoni R Bilz H Bussmann-Holder A Kress W, Mitsui T, Müller K A, Randall C, Rogers C, Samara G A, Sievers A J, Simon A, Simon A, Smolenski G, Smolenski G A, Stachiotti M G, Stirling W G, Stirling W G, Stirling W G, Thomas H, Thomas H, Thorhallson G, Tikhonov A N, Tinte S, Wul B, Wul B, Wul B, Yamada Y, Ziebiňska A   +52 more
core   +1 more source

Composition-sensitive electrical properties of charge nonstoichiometric 0.94Bi0.5+xNa0.5−xTiO3–0.06BaTiO3 ceramics [PDF]

Journal of Advanced Dielectrics, 2019
Charge nonstoichiometric 0.94Bi0.5+xNa0.5−xTiO3–0.06BaTiO3 (BNT-BT) (x=−0.02,−0.01,0,0.01,0.02) ceramics were prepared and investigated. The depolarization temperature was dependent on composition and the ferroelectric property of x>0 was suppressed more
Ji Zhang, Rui-Xue Wang, Ling Li, Lei Sun, Zheng-Bin Gu, Haibo Zhang, Shan-Tao Zhang   +6 more
doaj   +1 more source

Enhanced Electromechanical Response in 1D Hybrid Perovskites: Coexistence of Normal and Relaxor Ferroelectric Phases

Advanced Functional Materials, EarlyView.
The dynamic polarization reversal of coexisting normal and relaxor ferroelectrics in 1D TMAPbI₃ (tetramethylammonium, TMA) is deciphered through combined experimental and theoretical approaches. By bridging atomic‐scale motion, macroscopic polarization switching, and depolarization effects, a universal methodology is established to engineer next ...
Chen Xue, Masaru Fujibayashi, Hengming Huang, Chisato Kato, Katsuya Ichihashi, Jun Manabe, Sadafumi Nishihara, Xiao‐Ming Ren, Takayoshi Nakamura   +8 more
wiley   +1 more source

A New Strategy for Large Dynamic Piezoelectric Responses in Lead‐Free Ferroelectrics: The Relaxor/Morphotropic Phase Boundary Crossover

Advanced Functional Materials, 2020
One of the key problems in the existing lead‐free piezoelectrics lies in how to further boost their dynamic piezoelectric responses, i.e., electrostrain and dynamic piezoelectric constants, in an effective and facile manner, making them comparable to ...
Le Zhang, Haoyu Wang, D. Wang, M. Guo, X. Lou, Danyang Wang   +5 more
semanticscholar   +1 more source

Optical Control of Ferroelectric Imprint in BiFeO3

Advanced Functional Materials, EarlyView.
Above‐bandgap irradiation at room temperature enables on‐demand optical control of defect‐driven built‐in electric fields in BiFeO₃ thin films, fabricated via scalable, chemical spray pyrolysis. These fields, otherwise “frozen‐in,” can cause severe device degradation, including non‐switchable polarization, dead layers near interfaces, and polarization ...
Haoze Zhang, Malur C. Nagashree, Richard F. Webster, Zhipeng Wang, Xiaoran Zheng, Suresh D. Kulkarni, Rajendra B. Venkataramana, Jan Seidel, Pankaj Sharma   +8 more
wiley   +1 more source