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Flexoelectric aging effect in ferroelectric materials
Journal of Applied Physics, 2023In spite of the flexoelectric effect being a universal phenomenon in the ferroelectric perovskites, the current understanding of flexoelectric aging in ferroelectrics is, actually, rather incomplete. In this paper, we have fabricated a series of Mn-doped BaTiO3 perovskite ceramics (BaTi1–xMnxO3, x = 0.1% and 1%, BTMO) to systematically investigate the ...
Zhen Zhang +7 more
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The flexoelectric effect in Al-doped hafnium oxide
Nanoscale, 2018After the observation of ferroelectric HfO 2 , interest in ferroelectric-based nanoelectronics has been renewed. However, ferroelectrics also show coupling between the electrical polarization and the deformation gradient, defined as flexoelectricity.
Umberto Celano +9 more
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The theory of flexoelectric effect of polymer glasses
Colloid & Polymer Science, 1991Electric polarization induced by a nonhomogenous deformation flied — flexo-electricity — has has been studied on a model of polymer in the glassy state. The results are expressed in terms of phenomenological coefficients, which are analogical to the electric polarizability.
M. Schulz, M. Marvan
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Flexoelectric Effect for Cracks in Piezoelectric Solids
Key Engineering Materials, 2018The finite element method (FEM) is developed to analyse 2-D crack problems where the electric field and displacement gradients exhibit a size effect penomenon. This phenomenon in micro/nanoelectronic structures is described by the strain-and electric field-gradients in constitutive equations.
Jan Sladek +3 more
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Spontaneous flexoelectric/flexomagnetic effect in nanoferroics
Physical Review B, 2009Within the Landau-Ginsburg-Devonshire phenomenological approach we study the ferroic nanosystem properties changes caused by the flexoeffect (flexoelectric and flexomagnetic) existing spontaneously due to the inhomogeneity of order parameters. An exact solution for the spatially inhomogeneous mechanical displacement vector allowing for flexocoupling ...
Eugene A. Eliseev +3 more
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Effect of flexoelectricity on the curvature elasticity of the membrane
Liquid Crystals, 1990Abstract The contribution of flexoelectricity to the curvature elastic modulus for a symmetric lipid bilayer is calculated. The cases of permitted and forbidden charge exchange between the electrolyte on both sides of the membrane are discussed. On the basis of a simplified model of the lipid bilayer, an estimate of the difference of the moduli ...
I. Bivas, M. M. Kozlov
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Flexoelectric Effect in a HAN-IPS Cell
Molecular Crystals and Liquid Crystals, 2010Flexoelectric properties are evident in experiments preformed with hybrid aligned nematic. In this article, the flexoelectric effect in a hybrid aligned nematic in-plane switching liquid-crystal cell is investigated. The equations for the distribution of the liquid-crystal director and the expression of critical voltage in the one-constant ...
Guili Zheng, Zhidong Zhang
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Decoupled shear flexoelectric effects in polymers
Journal of Applied Physics, 2019The coupling between dielectric polarization and strain gradient, known as flexoelectricity, is a property of all dielectric materials. Flexoelectric coefficients are essential during applications. In order to increase the number of measurable flexoelectric coefficients, more experimental approaches are needed. In this work, circular terrace and column
Kaiyuan Liu +5 more
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Dynamic flexoelectric effect on piezoelectric nanostructures
European Journal of Mechanics - A/Solids, 2018zbMATH Open Web Interface contents unavailable due to conflicting licenses.
B.H. Nguyen +5 more
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