Results 51 to 60 of about 5,274,609 (184)

Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics

Advanced Science, EarlyView.
Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Dongyu Bai, Ri He, Junxian Liu, Liangzhi Kou   +3 more
wiley   +1 more source

Morphotropic Phase Boundary Engineering in Ferroelectrics [PDF]

, 2013
Barium calcium titanate (BCT), Sr-doped BCT (BSCT), and barium strontium calcium titanate-barium zirconate titanate xBSCT-(1-x)BZT (0.1&lex&le0.55) ceramics have been prepared by sol-gel method and solid state sintering process.
Liu, Yueying
core   +1 more source

Shift in Morphotropic Phase Boundary in La-Doped BiFeO3-PbTiO3 Piezoceramics

, 2009
Polycrystalline BiFeO3-PbTiO3 (BF-PT) powders with mixed tetragonal and rhombohedral crystal structure (morphotropic phase boundary: MPB) were modified with lanthanum to provide a wide variation in tetragonal distortion.
Jo, Wook, Bell, Andrew, Roedel, Juergen, Leist, Thorsten, Rödel, Jürgen, Comyn, Timothy, Wook Jo, Timothy Comyn, Jürgen Rödel, Thorsten Leist, Andrew Bell   +10 more
core   +1 more source

Synergistic Modulation of Polarization and Leakage Current in MPB‐HZO Capacitors via TiO2 Interlayer

Advanced Electronic Materials
To address critical reliability concerns in ferroelectric devices, the role of a TiO2 interlayer in modulating the electrical characteristics of HfxZr1‐xO2 (HZO)‐based metal‐ferroelectric‐metal (MFM) capacitors near the morphotropic phase boundary (MPB ...
Changhyeon Han, Been Kwak, Joonhyeok Choi, Sung‐Wook Park, Dahye Yu, Minsuk Song, Rino Choi, Daewoong Kwon   +7 more
doaj   +1 more source

Enhanced ferroelectric and piezoelectric characteristics in Ca-substituted ceramics

Journal of Advanced Dielectrics, 2022
In this work, Ba[Formula: see text]Ca[Formula: see text]Ti[Formula: see text]Zr[Formula: see text]O3 ([Formula: see text]= 0.00–0.25) ceramics were prepared by a solid-state reaction method, and the variation of dielectric, ferroelectric and ...
S. B. Chen, S. Y. Wu, X. M. Chen
doaj   +1 more source

Recent Advance for PVDF Based Flexible Piezoelectric Sensors

EcoEnergy, EarlyView.
This review focus on the structural regulation of PVDF via boundary confinement, blending regulation, electric‐field‐assisted orientation, and chemical modification for flexible piezoelectric sensors. ABSTRACT The rapid advancement of flexible electronics, wearable devices, and biomedical engineering has spurred increasing demand for sensor materials ...
Chaoran Tan, Aokai Yang, Yuyang Ling, Meilin Liu, Liang Huang   +4 more
wiley   +1 more source

Large electrocaloric effect over a wide temperature span in lead-free bismuth sodium titanate-based relaxor ferroelectrics

Journal of Materiomics, 2023
For efficient solid-state refrigeration technologies based on electrocaloric effect (ECE), it is a great challenge of simultaneously obtaining a large adiabatic temperature change (ΔT) within a wide temperature span (Tspan) in lead-free ferroelectric ...
Xiaopo Su, Junjie Li, Yuxuan Hou, Ruowei Yin, Jianting Li, Shiqiang Qin, Yanjing Su, Lijie Qiao, Chuanbao Liu, Yang Bai   +9 more
doaj   +1 more source

Freestanding PZT Films for Integrated Wearable Sensing and Intelligent Acoustic Recognition [PDF]

Advanced science
A freestanding epitaxial PZT/LaNiO3/Pt heterostructure is achieved via water‐assisted delamination from mica, effectively eliminating substrate‐induced clamping and releasing intrinsic ferroelectricity. The released film exhibits substantially enhanced remanent polarization and piezoelectric response, delivering excellent mechanical flexibility and ...
Pan H, Xu Z, Liu R, Pei J, Yang C, Huang S, Wübbenhorst M.   +6 more
europepmc   +2 more sources

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

Advanced Functional Materials, Volume 36, Issue 81, 8 October 2026.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu, Xiangwei Guo, Sajid Husain, Maya Ramesh, Pushpendra Gupta, Darrell Schlom, Ramamoorthy Ramesh, Yu‐Tsun Shao   +7 more
wiley   +1 more source

Glissile Interphase Boundaries Enable Collective Phase Switching in Epitaxial Polar Oxides

Advanced Functional Materials, Volume 36, Issue 81, 8 October 2026.
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