Results 41 to 50 of about 1,641 (185)

Sol-gel processing and physic-chemical characterization of La and Ce doped lead titanate ceramics

MATEC Web of Conferences, 2013
PbTiO3 (PT) sol gel processed powders doped with lanthanum (PLT14) and cerium (PLCexT14, x = 1; 3; 6; 10) were characterized by XRD and Raman spectroscopy. The samples crystallize in a pure perovskite phase at temperatures smaller than those reported for
Guaaybess Y., Maanan M., Adhiri R., Moussetad M., El Mesbahi A., Sayouri S., Zarhouni L.   +6 more
doaj   +1 more source

From Flexible to Conformable Pressure Sensors: Mechanisms, Materials, and Biomedical Applications

Advanced Electronic Materials, EarlyView.
This review highlights recent progress, challenges and future opportunities in pressure sensing for advanced biomedical applications. We summarize key transduction mechanisms and emerging material strategies, discuss representative wearable and implantable applications for continuous physiological monitoring and provide a focused perspective on barrier
Rishabh B. Mishra, Andrea Ottomaniello, Virgilio Mattoli   +2 more
wiley   +1 more source

Investigating domain structures and superdomains in ferroelectric PbTiO3 based heterostructures on DyScO3

APL Materials
This work focuses on the complex ferroelastic/ferroelectric domain structure in the prototypical ferroelectric PbTiO3 epitaxially strained on (110)o-oriented DyScO3 substrates, with a 22 nm-thick bottom SrRuO3 electrode. High quality epitaxial growth has
L. Tovaglieri, M. Hadjimichael, P. Torruella, C.-Y. Hsu, L. Korosec, D. T. L. Alexander, P. Paruch, J.-M. Triscone, C. Lichtensteiger   +8 more
doaj   +1 more source

Poling-free relaxor-PbTiO3 single crystals

Journal of Materiomics
Relaxor-PbTiO3 ferroelectric single crystals have drawn attention aiming at high-end piezoelectric applications thanks to their excellent piezoelectric properties.
Hwang-Pill Kim, Geon-Ju Lee, Ju-Hyeon Lee, Jae-Hyeon Cho, Hye-Lim Yu, Woo-Seok Kang, Joo-Hee Kang, Ho-Yong Lee, Wook Jo   +8 more
doaj   +1 more source

Engineering polar vortex from topologically trivial domain architecture

Nature Communications, 2021
The majority of polar structures emerging naturally in ferroelectrics are topologically trivial. Here, the authors demonstrate reconstruction of topologically trivial strip-like domain architecture into arrays of polar vortex in (PbTiO3)10/(SrTiO3)10 ...
Congbing Tan, Yongqi Dong, Yuanwei Sun, Chang Liu, Pan Chen, Xiangli Zhong, Ruixue Zhu, Mingwei Liu, Jingmin Zhang, Jinbin Wang, Kaihui Liu, Xuedong Bai, Dapeng Yu, Xiaoping Ouyang, Jie Wang, Peng Gao, Zhenlin Luo, Jiangyu Li   +17 more
doaj   +1 more source

Artificial Intelligence for Fluorite Ferroelectric Materials: From Discovery to Optimization

Advanced Electronic Materials, EarlyView.
Artificial intelligence accelerates the discovery and optimization of HfO2‐based fluorite ferroelectrics by linking synthesis, structure, properties, and device performance. Machine learning, deep‐learning analysis, and AI‐driven atomistic modeling enable predictive design, dopant screening, and closed‐loop optimization toward next‐generation ...
Faizan Ali, David Lehninger, Florencio Sánchez, Ignasi Fina   +3 more
wiley   +1 more source

Realizing negative thermal expansion over an extended temperature range in PbTiO3-based perovskites

Journal of Advanced Ceramics
Negative thermal expansion (NTE) is fascinating, as it involves a material’s volume contraction rather than expansion upon heating. Although NTE lattices typically have highly flexible frameworks, the magnitude of NTE is often very small, and they ...
Zhao Pan, Fengyi Zhou, Mengqi Ye, Duo Wang, Qiumin Liu, Takumi Nishikubo, Xubin Ye, Xiao Wang, Jin Liu, Nianpeng Lu, Shogo Kawaguchi, Masaki Azuma, Youwen Long   +12 more
doaj   +1 more source

Estudio químico-cuántico de los defectos producidos por las vacancias de oxígeno en los cristales de Titanato de plomo PbTiO3

Ingenius: Revista de Ciencia y Tecnología, 2008
Estudio químico-cuántico de los defectos producidos por las vacancias de oxígeno en los cristales de Titanato de plomo ...
Arvids Stashans, Sheyla Serrano, P. Medina   +2 more
doaj   +1 more source

Discovery of Novel Materials with Giant Dielectric Constants via First‐Principles Phonon Calculations and Machine Learning

Advanced Intelligent Discovery, EarlyView.
We discovered novel materials with giant dielectric constants by combining first‐principles phonon calculations and machine learning. Screening 525 perovskites identified six candidates. RbNbO3 was synthesized under pressure and showed ε ≈ 800–1000. This validates our framework as a powerful tool for high‐performance dielectric materials discovery.
Hiroki Moriwake, Kazuki Shitara, Rie Yokoi, Takeharu Kato, Isao Tanaka, Ayako Yamamoto, Kimitoshi Murase, Yosuke Hamasaiki, Yoshitaka Ehara, Mitsuru Itoh   +9 more
wiley   +1 more source

Effect of in-plane strain anisotropy on (011) epitaxial BaTiO3 and PbTiO3 thin films

AIP Advances, 2017
Misfit strain phase diagrams of single-domain (011) epitaxial BaTiO3 and PbTiO3 thin films are computed using a thermodynamic phenomenological approach. In the case of (001) epitaxial films, the two orthogonal in-plane misfit strains are equivalent. For (
Wenhui Ma, Fei Wang
doaj   +1 more source