Results 11 to 20 of about 76,083 (289)
Fractional quantum ferroelectricity
Nature Communications, 2023 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 +3 more
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Advanced Science, 2023 AbstractFreestanding slender fluid filaments of room‐temperature ferroelectric nematic liquid crystals are described. They are stabilized either by internal electric fields of bound charges formed due to polarization splay or by external voltage applied between suspending wires.
Marcell T. Máthé +4 more
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Ferroelectric critical size of SnTe nanoribbon and its mechanical strain engineering
Nihon Kikai Gakkai ronbunshu, 2020 We investigate the critical size of ferroelectricity in monolayer tin telluride (SnTe) nanoribbon by using ab initio (first-principles) density functional theory calculations.
Koichiro MINAGURO +3 more
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High-entropy enhanced room-temperature ferroelectricity in rare-earth orthoferrites
Journal of Advanced Ceramics, 2023 Single-phase multiferroic materials of rare-earth orthoferrites with magnetism and ferroelectricity are of great technological importance in storage devices.
Bo Ni +4 more
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Ferroelectric Electron Holography [PDF]
Microscopy and Microanalysis, 2002 Ferroelectrics are increasingly important as materials in semiconductor technology, e.g. for building non-volatile memory chips. For optimisation of the properties of such devices, there is an urgent need for methods, which analyse the ferroelectric properties at nanometer scale. Furthermore, the basic understanding of the interaction of ferroelectrics
Hannes, Lichte +3 more
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Overcoming Size Effects in Ferroelectric Thin Films
Advanced Physics Research, 2023 Ferroelectric thin films have recently received unprecedented attention due to the need to miniaturize electronic circuit devices. Synthesis and deposition processes along with theoretical calculations are improved remarkably to realize stable ...
Sung Hyuk Park +3 more
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Ferroelectricity enhancement in ferroelectric nanotubes [PDF]
Phase Transitions, 2007 In this paper we study the size effects of the ferroelectric nanotube phase diagrams and polar properties allowing for effective surface tension and depolarization field influence. The approximate analytical expression for the paraelectric-ferroelectric transition temperature dependence on the radii of nanotube, polarization gradient coefficient ...
Morozovska, A. N. +2 more
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Ab Initio Study of Ferroelectric Critical Size of SnTe Low-Dimensional Nanostructures
Nanomaterials, 2020 Beyond a ferroelectric critical thickness of several nanometers existed in conventional ferroelectric perovskite oxides, ferroelectricity in ultimately thin dimensions was recently discovered in SnTe monolayers.
Takahiro Shimada +4 more
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Quantum Phase Transitions in Graphene Coupled to a Twisted WSe 2 Moiré Ferroelectricity [PDF]
Advanced Materials, EarlyView.Moiré ferroelectricity in twisted WSe2 (t‐WSe2) breaks graphene's sublattice symmetry, inducing a room‐temperature metal‐insulator transition. Coupling graphene with ferroelectric domains of t‐WSe2 creates local Dirac points and metallic phases with Fermi‐liquid and non‐Fermi‐liquid behavior.
Budhi Singh +17 more
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Nature Communications, 2021 The ferroelectricity in hybrid perovskite CH3NH3PbI3 is under debate. Here, the authors predict a Pb-free hybrid perovskite N(CH3)4SnI3 with non-polar molecular cation N(CH3)4+ showing strong ferroelectricity, good stability, and high visible-light ...
Hai Wei +3 more
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