Results 31 to 40 of about 74,381 (146)

Extendable piezo/ferroelectricity in nonstoichiometric 2D transition metal dichalcogenides

Nature Communications, 2023
Engineering piezo/ferroelectricity in two-dimensional materials holds significant implications for advancing the manufacture of state-of-the-art multifunctional materials.
Yi Hu, Lukas Rogée, Weizhen Wang, Lyuchao Zhuang, Fangyi Shi, Hui Dong, Songhua Cai, Beng Kang Tay, Shu Ping Lau   +8 more
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Purely in-plane ferroelectricity in monolayer SnS at room temperature

Nature Communications, 2020
Out-of-plane ferroelectricity is usually unstable in the two dimensional limit due to the presence of the depolarization field. Here, the authors successfully circumvent this issue by growing µm-sized SnS monolayers that exhibit in-plane ferroelectricity
Naoki Higashitarumizu, Hayami Kawamoto, Chien-Ju Lee, Bo-Han Lin, Fu-Hsien Chu, Itsuki Yonemori, Tomonori Nishimura, Katsunori Wakabayashi, Wen-Hao Chang, Kosuke Nagashio   +9 more
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Fluid Layered Ferroelectrics with Global C∞v Symmetry

Advanced Science, 2022
Ferroelectricity in fluid materials, which allows free rotation of molecules, is an unusual phenomenon raising cutting‐edge questions in science. Conventional ferroelectric liquid crystals have been found in phases with low symmetry that permit the ...
Hirotsugu Kikuchi, Hiroyuki Matsukizono, Koki Iwamatsu, Sota Endo, Shizuka Anan, Yasushi Okumura   +5 more
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Ferroelectricity in Simple Binary Crystals

Crystals, 2017
The origin of ferroelectricity in doped binary crystals, Pb1−xGexTe, Cd1−xZnxTe, Zn1−xLixO, and Hf1−xZrxO2 is discussed, while no binary ferroelectrics have been reported except for two crystals, HCl and HBr. The ferroelectricity is induced only in doped
Akira Onodera, Masaki Takesada
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Ga-substitution effects on the improper ferroelectric phase transition of Ca8[AlO2]12(MoO4)2

Open Ceramics, 2021
The aluminum-sodalite-type oxide, Ca8[AlO2]12(MoO4)2, shows an improper ferroelectricity below a ferroelectric phase transition temperature around 630 ​K. Here we present effects of a Ga-substitution for Al on ferroelectric properties of Ca8[AlO2]12(MoO4)
Koji Maruyama, Akitoshi Nakano, Ichiro Terasaki, Hiroki Taniguchi   +3 more
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Experimental demonstration of tunable hybrid improper ferroelectricity in double-perovskite superlattice films

Nature Communications
Hybrid improper ferroelectricity can effectively avoid the intrinsic chemical incompatibility of electronic mechanism for multiferroics. Perovskite superlattices, as theoretically proposed hybrid improper ferroelectrics with simple structure and high ...
Yaoxiang Jiang, Jianguo Niu, Cong Wang, Donglai Xue, Xiaohui Shi, Weibo Gao, Shifeng Zhao   +6 more
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Direct Epitaxial Growth of Polar Hf_0.5Zr_0.5O₂ Films on Corundum

Nanomaterials, 2022
Single-phase epitaxial Hf0.5Zr0.5O2 films with non-centrosymmetric orthorhombic structure have been grown directly on electrode-free corundum (α-Al2O3) substrates by pulsed laser deposition.
Eduardo Barriuso, Panagiotis Koutsogiannis, David Serrate, Javier Herrero-Martín, Ricardo Jiménez, César Magén, Miguel Algueró, Pedro A. Algarabel, José A. Pardo   +8 more
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Room-temperature ferroelectricity in A-site ordered Ruddlesden-Popper Li2CaTa2O7 ceramics

Journal of Materiomics, 2020
In the present work, the crystal structure, ferroelectric and dielectric properties of the dense single-phase Li2CaTa2O7 ceramics with A-site ordered double-layer Ruddlesden-Popper structures have been investigated by the experiments and first-principles
B.H. Zhang, Z.Z. Hu, B.H. Chen, X.Q. Liu, X.M. Chen   +4 more
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Fractional quantum ferroelectricity

Nature Communications
For an ordinary ferroelectric, the magnitude of the spontaneous electric polarization is at least one order of magnitude smaller than that resulting from the ionic displacement of the lattice vectors, and the direction of the spontaneous electric ...
Junyi Ji, Guoliang Yu, Changsong Xu, H. J. Xiang   +3 more
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Endowing Ferroelectric Properties of Tetragonal Lysozyme Crystals through C₆₀ Doping

Crystals
The inherent nonpolarity of tetragonal lysozyme crystals excludes a ferroelectricity response. Herein, we present a demonstration of achieving measurable ferroelectricity in tetragonal lysozyme crystals through C60 doping. Ferroelectric characterizations
Renbin Zhou, Xuejiao Liu, Weihong Guo, Dachuan Yin   +3 more
doaj   +1 more source