Results 21 to 30 of about 76,083 (289)

An antisite defect mechanism for room temperature ferroelectricity in orthoferrites

open access: yesNature Communications, 2021
Ferroelectricity in orthoferrite perovskites has stimulated intense research, but the mechanism remains unclear. Here, the authors propose an antisite defect mechanism for introducing ferroelectricity in magnetically ordered YFeO3 and the family of rare ...
Shuai Ning   +9 more
doaj   +1 more source

Visualizing moiré ferroelectricity via plasmons and nano-photocurrent in graphene/twisted-WSe2 structures

open access: yesNature Communications, 2023
Ferroelectricity, a spontaneous and reversible electric polarization, is found in certain classes of van der Waals (vdW) materials. The discovery of ferroelectricity in twisted vdW layers provides new opportunities to engineer spatially dependent ...
Shuai Zhang   +30 more
doaj   +1 more source

Evolution of crystallographic structure and ferroelectricity of Hf0.5Zr0.5O2 films with different deposition rate

open access: yesAIP Advances, 2020
Hf0.5Zr0.5O2 films are one of the most attractive HfO2-based ferroelectric films because of good ferroelectricity, extreme thinness, and excellent compatibility with silicon devices.
Taeho Kim, Minho An, Sanghun Jeon
doaj   +1 more source

Ferroelectric columnar assemblies from the bowl-to-bowl inversion of aromatic cores

open access: yesNature Communications, 2021
Organic ferroelectrics are of potential use in state-of-the-art ferroelectric devices but mechanistic insight in generating ferroelectricity remains limited.
Shunsuke Furukawa   +9 more
doaj   +1 more source

Extendable piezo/ferroelectricity in nonstoichiometric 2D transition metal dichalcogenides

open access: yesNature 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   +8 more
doaj   +1 more source

Ferroelectricity in Simple Binary Crystals

open access: yesCrystals, 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
doaj   +1 more source

Purely in-plane ferroelectricity in monolayer SnS at room temperature

open access: yesNature 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   +9 more
doaj   +1 more source

Improper electric polarization in simple perovskite oxides with two magnetic sublattices

open access: yesNature Communications, 2017
Magnetically-driven ferroelectricity holds the key for novel multiferroic effects in perovskite oxides, but it remains poorly understood. Here, Zhaoet al.
Hong Jian Zhao   +3 more
doaj   +1 more source

Fluid Layered Ferroelectrics with Global C∞v Symmetry

open access: yesAdvanced 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   +5 more
doaj   +1 more source

Ga-substitution effects on the improper ferroelectric phase transition of Ca8[AlO2]12(MoO4)2

open access: yesOpen 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   +3 more
doaj   +1 more source

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