Results 291 to 300 of about 200,353 (320)

Configuration and Charge Dynamics of Defect‐Cluster‐Dipoles in CaTiO3 for Enhanced Permittivity

Advanced Electronic Materials, EarlyView.
In La‐doped CaTiO3, the clustering of La ion and Ca vacancies is clearly observed and the configuration of such defect‐cluster is validated. Combining photoelctronic and dielectric spectroscopy enables the dielectric relaxation process with the charge transfer routes.
Jian Wang, Zhuowen Zou, Jiajun Zhu, Dandan Gao, Wanbiao Hu   +4 more
wiley   +1 more source

Interface Engineering Strategies for Realizing Anode‐Free Sodium Batteries: A Review

Advanced Energy Materials, EarlyView.
This review examines anode‐free sodium batteries as a promising solution for advancing sodium‐based energy storage. It focuses on the role of interface engineering in addressing challenges such as sodium deposition, interface stability, and dendrite growth.
Yulian Dong, Changfan Xu, Huaping Zhao, Lizhuang Chen, Weidong Shi, John Irvine, Yong Lei   +6 more
wiley   +1 more source

Form Factor–Free Magneto‐Triboelectric Generator for Standalone Power Line IoT Applications

Advanced Energy Materials, EarlyView.
These limitations are addressed by employing iron, one of the most abundant materials on Earth, and the flexible ferroelectric polymer P(VDF‐TrFE). The composite film of P(VDF‐TrFE) and iron exhibits mechanical deformation under magnetic fields, combined with excellent flexibility, cost‐effective fabrication, and straightforward processing.
Hyun Soo Kim, Min Hyuk Lee, Do‐Heon Kim, Dong‐Gyu Lee, Iman M. Imani, SungHoon Hur, Young Joon Ko, Yeong Uk Choi, Hyunah Cho, So‐Min Song, Tae Kyoung Yoon, In Woo Oh, Jong Hoon Jung, Jun Chen, Yunseok Kim, Heemin Kang, Jungho Ryu, Jeong Min Baik, Hyun‐Cheol Song   +18 more
wiley   +1 more source

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Ferroelectricity in untwisted heterobilayers of transition metal dichalcogenides

Science, 2022
Two-dimensional materials with out-of-plane (OOP) ferroelectric and piezoelectric properties are highly desirable for the realization of ultrathin ferro- and piezoelectronic devices.
Lukas Rogée, Lvjin Wang, Yi Zhang, S. Cai, Peng Wang, M. Chhowalla, W. Ji, S. Lau   +7 more
semanticscholar   +1 more source

Direct observation of geometric and sliding ferroelectricity in an amphidynamic crystal

Nature Materials, 2022
Sliding ferroelectricity is a recently observed polarity existing in two-dimensional materials. However, due to the weak polarization and poor electrical insulation in these materials, existing experimental evidences are indirect and mostly based on ...
Le-Ping Miao, Ning Ding, Na Wang, Chao Shi, Heng‐Yun Ye, Linglong Li, Ye-Feng Yao, Shuai Dong, Yi Zhang   +8 more
semanticscholar   +1 more source

Intrinsic ferroelectricity in Y-doped HfO2 thin films

Nature Materials, 2021
Ferroelectric HfO2-based materials hold great potential for the widespread integration of ferroelectricity into modern electronics due to their compatibility with existing Si technology.
Yu Yun, P. Buragohain, Ming Li, Z. Ahmadi, Yizhi Zhang, Xin Li, Haohan Wang, Jing Li, P. Lu, L. Tao, Haiyan Wang, J. Shield, E. Tsymbal, A. Gruverman, Xiaoshan Xu   +14 more
semanticscholar   +1 more source

Ferroelectricity in Doped Incipient Ferroelectrics

AIP Conference Proceedings, 2002
We consider the quantum properties of mixed incipient ferroelectrics with small concentrations of ferroelectricity inducing ions such as KTa1−xNbxO3. We show that the nonuniform strong intra‐band electron ‐ phonon interaction leads to the localization of virtual conduction band electrons around the Nb ions and to the off ‐center displacements of these ...
Yizhak Yacoby, Yakov Girshberg
openaire   +2 more sources

Aging in Ferroelectrics

Journal of the American Ceramic Society, 2005
The reorientation of defect dipoles and the drift of free charge carriers are the most prominent microscopic mechanisms under discussion to provoke the aging effect in ferroelectrics. These two mechanisms are contrasted taking into account the influence of grain boundaries in a polycrystalline material.
Lupascu, Doru C., Genenko, Yuri A., Balke, Nina   +2 more
openaire   +2 more sources

Room-Temperature Ferroelectricity in 1T^{'}-ReS_{2} Multilayers.

Physical Review Letters, 2022
van der Waals materials possess an innate layer degree of freedom and thus are excellent candidates for exploring emergent two-dimensional ferroelectricity induced by interlayer translation.
Y. Wan, Ting Hu, Xiaoyu Mao, J. Fu, Kai Yuan, Yu Song, Xuetao Gan, Xiaolong Xu, M. Xue, Xing Cheng, Chengxi Huang, Jinbo Yang, L. Dai, H. Zeng, E. Kan   +14 more
semanticscholar   +1 more source

Dielectrics and Ferroelectrics

2010
Despite the fact that the concept of the dielectric constant is often taught in introductory physics – because, e.g., of its applications to capacitors – the concept involves subtle physics. The purpose of this chapter is to review the important dielectric properties of solids without glossing over the intrinsic difficulties.
James D. Patterson, Bernard C. Bailey
openaire   +2 more sources