Results 61 to 70 of about 4,429 (294)

Spatially-resolved relaxor to ferroelectric phase switching in 0.93Na1/2Bi1/2TiO3-0.07BaTiO3 ceramics

Journal of Materiomics, 2022
In situ, spatially-resolved synchrotron X-ray diffraction was utilized to investigate the electric field-induced heterogenous phase transformation of nonergodic relaxor 0.93Na1/2Bi1/2TiO3-0.07BaTiO3 ceramics. A Cu electrode was coated on one surface of a
Xi Shi, Udo Eckstein, Yizhe Li, David Hall, Neamul H. Khansur   +4 more
doaj   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

Advanced Functional Materials, EarlyView.
A triple point is identified in the phase diagram of low‐symmetry epitaxial BiFeO3 thin film along with an extended regime of phase competition associated with a flattened energy landscape. The electromechanical response is shown to be governed by correlated interphase‐boundary motion, including scale‐free avalanche dynamics characteristic of systems ...
Mohammad Moein Seyfouri, Oliver Paull, Ralph Bulanadi, Yasuhiro Sakamoto, Shintaro Yasui, Mikayla Lord, Mahak Chhabra, David Walker, Patrycja Paruch, Shery Chang, Nagarajan Valanoor, Daniel Sando   +11 more
wiley   +1 more source

Achieving Temperature‐Insensitive High Piezoelectricity by Reentrant Relaxor Transition

Advanced Science
Although precision sensors and actuators demand piezoelectric materials with temperature‐insensitive high piezoelectricity (d33), achieving such a property is physically challenging because high d33 relies on tuning the material to the vicinity of a ...
Yang Yang, Shichang Li, Liqiang He, Guanqi Wang, Chang Liu, Yiqiao Song, Yuanchao Ji, Hanbing Zhang, Jiantuo Zhao, Dong Wang, Xiaobing Ren   +10 more
doaj   +1 more source

Realizing high low-electric-field energy storage performance in AgNbO3 ceramics by introducing relaxor behaviour

Journal of Materiomics, 2019
Both sustainable development in environment and safety of high-power systems require to develop a novel lead-free dielectric capacitor with high energy density (Wrec) at low applied electric field.
Kai Han, Nengneng Luo, Shuaifei Mao, Fangping Zhuo, Xiyong Chen, Laijun Liu, Changzheng Hu, Huanfu Zhou, Xinpeng Wang, Yuezhou Wei   +9 more
doaj   +1 more source

Revealing the role of the constant phase element in relaxor ferroelectrics

Communications Physics, 2022
Relaxor ferroelectrics are a type of material exhibiting electrostriction whereby a change in the material shape occurs under an applied electric field; however, although known by the community for many years the underlying mechanisms of the phenomenon ...
Xavier Vendrell, Julia Ramírez-González, Zuo-Guang Ye, Anthony R. West   +3 more
doaj   +1 more source

Artificially induced normal ferroelectric behaviour in aerosol deposited relaxor 65PMN-35PT thick films by interface engineering

, 2021
A thin dielectric layer of Al2O3 was grown by atomic layer deposition on a relaxor ferroelectric 65Pb(Mg1/3Nb2/3)O-3-35PbTiO(3) (PMN-PT)/Pt/Si thick film fabricated by the aerosol deposition technique to artificially induce ferroelectric behaviour.
Lee, Min-Young, Patil, Deepak Rajaram, Ryu, Jungho, Thakre, Atul, Kumar, Ajeet, Kim, Soo-Hyun   +5 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

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

Relaxations and Relaxor-Ferroelectric-Like Response of Nanotubularly Confined Poly(vinylidene fluoride) [PDF]

, 2017
Herein, we elucidate the impact of tubular confinement on the structure and relaxation behavior of poly(vinylidene difluoride) (PVDF) and how these affect the para-/ferroelectric behavior of this polymer.
Cavallaro A
core   +2 more sources

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