Results 1 to 10 of about 5,274,609 (184)

Morphotropic Phase Boundary in Graft Poly(Vinylidene Fluoride‐co‐Tetrafluoroethylene) With High Curie Temperature [PDF]

Advanced Science
Morphotropic phase boundary (MPB) has been demonstrated in various ferroelectric polymers near which piezoelectric coefficient d33 is substantially enhanced.
Zekai Fei, Chenyi Li, Yuquan Liu, Yang Li, Yun Zhang, Huamin Zhou, Yang Liu   +6 more
doaj   +3 more sources

Low‐Voltage and High‐k Properties of Bilayer HZO Capacitors at the Morphotropic Phase Boundary for Next‐Generation Memory Applications [PDF]

Advanced Science
We report the phase stabilization and capacitance enhancement of electric‐field‐treated Hf0.5Zr0.5O2 (HZO) bilayer capacitors near the morphotropic phase boundary (MPB).
Junseok Kim, Hyeonjung Park, Changwoo Han, Huiseong Shin, Myeongjae Choi, Changhwan Shin   +5 more
doaj   +2 more sources

Crystal structure and piezoelectric properties of 0.79(Na0.5Bi0.5)TiO3-0.05BaTiO3-0.16(K0.5Bi0.5)TiO3 ceramics prepared by solid–state method [PDF]

Heliyon
The solid-state reaction technique was employed to synthesize lead-free ceramics, specifically (1-x-y)(Na0.5Bi0.5)TiO3-xBaTiO3-y(K0.5Bi0.5)TiO3. For attaining a pure perovskite phase, it was found that the optimal calcination temperature is 1000 °C ...
M. Mesrar, T. Lamcharfi, N.-S. Echatoui, F. Abdi   +3 more
doaj   +2 more sources

Stacked Nanosheet Gate‐All‐Around Morphotropic Phase Boundary Field‐Effect Transistors [PDF]

Advanced Science
A material design method is proposed using ferroelectric (FE)–antiferroelectric (AFE) mixed‐phase HfZrO2 (HZO) to achieve performance improvements in morphotropic phase boundary (MPB) field‐effect transistors (MPB‐FETs), such as steep subthreshold swing (
Sihyun Kim, Hyun‐Min Kim, Ki‐Ryun Kwon, Daewoong Kwon   +3 more
doaj   +2 more sources

(1-x)(Na₀.₅Bi₀.₅)TiO₃-xCaTiO₃ ceramics: Investigating structural and microstructural features for enhanced dielectric properties [PDF]

Heliyon
(1-x)(Na₀.₅Bi₀.₅)TiO₃-xCaTiO₃ Lead-free piezoelectric systems, positioned near the morphotropic phase boundary, were synthesized for varying compositions (x = 0.0, 0.05, 0.10, 0.15, and 0.20) using the solid-state reaction route.
M. Mesrar, H. Majdoubi, Yan Le
doaj   +2 more sources

A morphotropic phase boundary in MA1−x FA x PbI3: linking structure, dynamics, and electronic properties [PDF]

Nature Communications
Understanding the phase behavior of mixed-cation halide perovskites is critical for optimizing their structural stability and optoelectronic performance.
Tobias Hainer, Erik Fransson, Sangita Dutta, Julia Wiktor, Paul Erhart   +4 more
doaj   +2 more sources

The high-pressure structure of (1-x)Na $$_{0.5}$$ 0.5 Bi $$_{0.5}$$ 0.5 TiO $$_3$$ 3 -xBaTiO $$_3$$ 3 at the morphotropic phase boundary [PDF]

Scientific Reports
The pressure-induced structural changes in the perovskite-type (ABO $$_3$$ 3 ) ferroelectric solid solution (1-x)Na $$_{0.5}$$ 0.5 Bi $$_{0.5}$$ 0.5 TiO $$_3$$ 3 -xBaTiO $$_3$$ 3 (NBT-xBT) at the morphotropic phase boundary (MPB) ( $$x_{\text {MPB}}=0 ...
Constanze Rösche, Tiziana Boffa Ballaran, Thomas Malcherek, Carsten Paulmann, Ross John Angel, Semën Gorfman, Boriana Mihailova   +6 more
doaj   +2 more sources

Ultrahigh thermal stability and piezoelectricity of lead-free KNN-based texture piezoceramics [PDF]

Nature Communications
The contradiction between high piezoelectricity and uniquely poor temperature stability generated by polymorphic phase boundary is a huge obstacle to high-performance (K, Na)NbO3 -based ceramics entering the application market as Pb-based substitutes. We
Lihui Xu, Jinfeng Lin, Yuxuan Yang, Zhihao Zhao, Xiaoming Shi, Guanglong Ge, Jin Qian, Cheng Shi, Guohui Li, Simin Wang, Yang Zhang, Peng Li, Bo Shen, Zhengqian Fu, Haijun Wu, Houbing Huang, Fei Li, Xiangdong Ding, Jun Sun, Jiwei Zhai   +19 more
doaj   +2 more sources

Optical and magnetic properties of Sm-doped BiFeO3 nanoparticles around the morphotropic phase boundary region

AIP Advances, 2021
The crystal structure, photocatalytic activity, and ferromagnetic properties of Sm-substituted (Bi1−xSmxFeO3, x = 0.05, 0.10, 0.15, 0.20) nanoparticles were systematically investigated within the entire Sm substitution region.
Yanhong Gu, Yan Zhou, Weiying Zhang, Chaoyang Guo, Xianghui Zhang, Jianguo Zhao, Yaju Zhang, Haiwu Zheng   +7 more
doaj   +1 more source

Effects of poling on the electrical and electromechanical response of PMN–PT relaxor ferroelectric ceramics

Open Ceramics, 2021
The dielectric and piezoelectric response of the Pb(Mg1/3Nb2/3)O3–xPbTiO3 (PMN–PT) polycrystalline ceramics after different poling procedures is examined and explained with respect to the phase composition and the domain structure.
M. Otoničar, A. Bradeško, S. Salmanov, C.C. Chung, J.L. Jones, T. Rojac   +5 more
doaj   +1 more source