Results 31 to 40 of about 1,751 (243)
A Graphene-Edge Ferroelectric Molecular Switch [PDF]
Nano Letters, 2018 Abstract We show that polar molecules (water, ammonia, and nitrogen dioxide) adsorbed solely at the exposed edges of an encapsulated graphene sheet exhibit ferroelectricity, collectively orienting and switching reproducibly between two available states in response to an external electric field.
José M. Caridad +9 more
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Advanced Science, 2023 Inorganic ferroelectrics have long dominated research and applications, taking advantage of high piezoelectric performance in bulk polycrystalline ceramic forms.
Yong Ai +8 more
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Ferroelectricity at molecular level
Phase Transitions, 2004 The synthesis of ultrathin ferroelectric nanostructures by the Langmuir–Blodgett method and their properties are reviewed. It is shown that ferroelectricity exists in one monolayer of the ferroelectric P(VDF-TrFE) copolymer, i.e., at the molecular level. The specific characteristics of switching of ultrathin ferroelectric films are established.
Blinov, L. M. +8 more
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Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics. [PDF]
Adv Sci (Weinh)Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Bai D, He R, Liu J, Kou L.
europepmc +2 more sources
On the molecular origins of the ferroelectric splay nematic phase [PDF]
Nature Communications, 2021 Abstract Nematic liquid crystals have been known for more than a century, but it was not until the 60s–70s that, with the development of room temperature nematics, they became widely used in applications. Polar nematic phases have been long-time predicted, but have only been experimentally realized recently.
Richard J. Mandle +3 more
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Electroresistance and electro-optic effects in molecular ferroelectrics
APL Materials, 2020 Molecular ferroelectrics are often considered as an alternative to inorganic ferroelectrics due to their structural diversity, optical transparency, and low-temperature solution processing.
Yong Hu, Shenqiang Ren
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Journal of Advanced Dielectrics, 2021 Organic molecular ferroelectric diisopropylammonium chloride (dipaCl) was successfully synthesized using diisopropylamine, hydrochloric acid (57%) and methanol solution.
Mamataj Khatun, Ekramul Kabir
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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 +5 more
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Crystals, 2021 A temperature-modulated pyroelectricity measurement system for a small single crystal is developed and applied to standard sample measurements performed on a thin single crystal of lithium niobate. The modulation measurement is based on the AC technique,
Kaoru Yamamoto +3 more
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Crystals, 2023 We present dielectric and anelastic spectroscopy measurements of the molecular piezoelectric TMCM-MnCl3 and TMCM-Mn0.95M0.05Cl3 (M = Cu, Fe, Ni; TMCM = trimethylchlorometylammonium), whose powders were pressed into discs and bars and deposited as films ...
Francesco Cordero +9 more
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