Results 301 to 310 of about 191,721 (336)

The Influence of Top and Bottom Metal Electrodes on Ferroelectricity of Hafnia

IEEE Transactions on Electron Devices, 2021
In recent years, several experimental approaches have been adopted to study and understand the mechanism and improve the ferroelectricity of fluorite-type hafnia-based ferroelectric materials.
Yongsung Lee, Y. Goh, Junghyeon Hwang, D. Das, S. Jeon   +4 more
semanticscholar   +1 more source

Molecular Ferroelectric Pyridin-4-ylmethanaminium Perchlorate Undergoes Paraelectric–Ferroelectric and Ferroelectric–Ferroelectric Phase Transitions

The Journal of Physical Chemistry C, 2016
Molecule-based ferroelectrics are a class of highly desirable intelligent materials for their rich switchable physical properties, easy and environmentally friendly processing, especial lightweight and mechanical flexibility. In the current work, a new molecule-based ferroelectrics pyridin-4-ylmethanaminium perchlorate was discovered undergoing ...
Zepeng Cui, Kaige Gao, Chuang Liu, Yan Yin, Da-Wei Fu, Hong-Ling Cai, X. S. Wu   +6 more
openaire   +1 more source

Two-dimensional ferroelectricity by design

Science, 2021
A synthetic ferroelectric is made from a van der Waals assembly of boron nitride The discovery of ferroelectricity marks its 100th anniversary this year (1), and this phenomenon continues to enrich our understanding of many fields of physics and material
E. Tsymbal
semanticscholar   +1 more source

Ferroelectric Polymers

Science, 1983
Piezoelectricity and pyroelectricity, traditionally encountered in certain single crystals and ceramics, have now also been documented in a number of polymers. Recently, one such polymer—poly(vinylidene fluoride)—and some of its copolymers have been shown to be ferroelectric as well.
openaire   +2 more sources

Ferroelectricity-Driven Self-Powered Ultraviolet Photodetection with Strong Polarization-Sensitivity in a Two-Dimensional Halide Hybrid Perovskite.

Angewandte Chemie, 2020
Polarization-sensitive ultraviolet (UV) photodetection is highly indispensable in military and civilian applications and has been demonstrated with various wide-band photodetectors.
Chengmin Ji, D. Dey, Yu Peng, Xitao Liu, Lina Li, Junhua Luo   +5 more
semanticscholar   +1 more source

Ferroelectricity and Ferroelectric Phase Transition

2013
Ultrathin crystalline films offer the possibility of exploring phase transitions in the crossover region between two and three dimensions. Second-order ferromagnetic phase transitions have been observed in monolayer magnetic films.
Vladimir Fridkin, Stephen Ducharme
openaire   +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 ...
openaire   +1 more source

Origin of Two-Dimensional Vertical Ferroelectricity in WTe2 Bilayer and Multilayer.

Journal of Physical Chemistry Letters, 2018
In a recent report, room-temperature vertical ferroelectricity was experimentally shown in WTe2 bilayer, while its mechanism of ferroelectric switching without vertical ion displacements remains unclarified.
Qing Yang, Menghao Wu, Ju Li
semanticscholar   +1 more source

Gate-Tunable In-Plane Ferroelectricity in Few-Layer SnS.

Nano letters (Print), 2019
Ultrathin ferroelectrics hold great promise for modern miniaturized sensors, memories, and optoelectronic devices. However, in most ferroelectric materials, polarization is destabilized in ultrathin films by the intrinsic depolarization field.
Yang Bao, Peng Song, Yanpeng Liu, Zhihui Chen, Menglong Zhu, Ibrahim Abdelwahab, Jie Su, Wei Fu, X. Chi, Wei Yu, Wei Liu, Xiaoxu Zhao, Qinghua Xu, Ming Yang, K. Loh   +14 more
semanticscholar   +1 more source

Intercorrelated In-Plane and Out-of-Plane Ferroelectricity in Ultrathin Two-Dimensional Layered Semiconductor In2Se3.

Nano letters (Print), 2018
Chaojie Cui, Weijin Hu, Xingxu Yan, Christopher Addiego, Wenpei Gao, Yao Wang, Zhe Wang, Linze Li, Yingchun Cheng, Peng Li, Xixiang Zhang, H. Alshareef, Tom Wu, Wenguang Zhu, Xiaoqing Pan, Lain‐Jong Li   +15 more
semanticscholar   +1 more source