Results 31 to 40 of about 684 (200)
Physics of Complex Systems, 2022 In this paper, the nonlinear and chaotic responses of bulk antiferroelectrics are elaborated phenomenologically and numerically. The first ordered phase of bulk antiferroelectrics is formulated by applying calculus of variations to Landau free energy ...
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Ferroelectric/paraelectric superlattices for energy storage. [PDF]
Sci Adv, 2022 The polarization response of antiferroelectrics to electric fields is such that the materials can store large energy densities, which makes them promising candidates for energy storage applications in pulsed-power technologies.
Aramberri H, Fedorova NS, Íñiguez J.
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On the possibility that PbZrO3 not be antiferroelectric [PDF]
npj Computational Materials, 2021 AbstractLead zirconate (PbZrO3) is considered the prototypical antiferroelectric material with an antipolar ground state. Yet, several experimental and theoretical works hint at a partially polar behaviour in this compound, indicating that the polarization may not be completely compensated.
Hugo Aramberri +3 more
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Full Antiferroelectric Performance and GMR Effect in Multiferroic La0.75Ba0.25Fe12O19 Ceramic
Applied Sciences, 2023 The potential application of multiferroic materials in new electronic devices attracts more and more attention from people either in an academic field or industry.
Zhen Xu, Guo-Long Tan
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Defect‐Induced, Ferroelectric‐Like Switching and Adjustable Dielectric Tunability in Antiferroelectrics [PDF]
, 2023 Antiferroelectrics, which undergo a field-induced phase transition to ferroelectric order that manifests as double-hysteresis polarization switching, exhibit great potential for dielectric, electromechanical, and electrothermal applications.
Zhang, Hongrui +29 more
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Temperature-dependent energy storage characterization of Pb-free relaxor ferroelectrics [PDF]
Journal of Advanced Dielectrics, 2020 The energy storage properties of (1−x)Bi0.5Na0.5TiO3–xBaTiO3(0≤x≤0.08) (BNT–BT) ceramics obtained via sol–gel method are determined from the polarization versus electric field (P–E) loops at various temperatures. The energy storage densities are observed
Sarir Uddin +4 more
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To Be or Not To Be Polar: The Ferroelectric and Antiferroelectric Nematic Phases [PDF]
ACS Omega, 2023 We report the properties of two new series of compounds that show the ferroelectric nematic phase in which the length of a terminal chain is varied. The longer the terminal chain, the weaker the dipole-dipole interactions of the molecules are along the director, and thus the lower the temperature at which the axially ferroelectric nematic phase is ...
Ewan Cruickshank +10 more
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Antiferroelectricity in a family of pyroxene-like oxides with rich polymorphism
Communications Materials, 2020 Antiferroelectrics are technologically important for energy conversion and storage, but are relatively scarce. Here, first-principles calculations suggest that alkali vanadates are as yet undetected antiferroelectrics, offering routes to experimentally ...
Hugo Aramberri, Jorge Íñiguez
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Old and New Antiferroelectrics: Experimental Studies of Phase Transitions in Model Materials [PDF]
, 2021 Antiferroelectrics are a subcategory of ferroic materials that display no spontaneous polarisation due to antiparallel ionic displacements. These materials undergo an electric field-induced transition to a polar phase accompanied by the emergence of a ...
MILESI-BRAULT, Cosme
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Physics of Complex Systems, 2023 This paper investigates the influence of the amplitude, frequency, and damping of the applied field on the maximal Lyapunov exponents and chaotic dynamics in the bulk antiferroelectric (AFE) system.
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