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Flexoelectric Effect in Solids [PDF]
Annual Review of Materials Research, 2013 Flexoelectricity—the coupling between polarization and strain gradients—is a universal effect allowed by symmetry in all materials. Following its discovery several decades ago, studies of flexoelectricity in solids have been scarce due to the seemingly small magnitude of this effect in bulk samples.
Zubko Pavlo +2 more
core +5 more sources
QMU Analysis of Flexoelectric Timoshenko Beam by Evidence Theory
Advances in Mathematical Physics, 2023 In recent years, with the rapid development of nanotechnology, a new type of electromechanical coupling effect similar to the piezoelectric effect, the flexoelectric effect, has gradually come into the public’s view.
Feng Zhang +5 more
doaj +2 more sources
Scientific Reports, 2021 Flexoelectricity will dominate the electromechanical coupling of intelligent components in MEMS/NEMS due to its size-dependency. This paper focuses on investigating the flexoelectric responses of intelligent components of the circular plate type, which ...
Xue Ji
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Mathematics and mechanics of solids, 2023 Flexoelectricity is a nanoscale phenomenon in dielectric crystals, where the mechanical loads resulting from the first strain gradient shares producing electricity.
Mohsen Fayik, A. R. El-Dhaba, Emad Awad
semanticscholar +1 more source
Analog modulation by the flexoelectric effect in liquid crystals [PDF]
Applied Optics, 2020 We have solved the long-standing problems of stability and hysteresis, and we are able to obtain the homogeneous uniform lying helix structure in polymer-free cholesteric liquid crystals. This is instrumental for the present work to demonstrate the analog modulation at high speed and high precision.
W. C. Yip +3 more
openaire +4 more sources
Flexoelectric effect modelling [PDF]
Opto-Electronics Review, 2008 AbstractA statistical theory of dipole flexoelectric (FE) polarization in liquid crystals is used to calculate temperature dependence of order parameters, elastic constants and FE coefficients. Two systems with polar wedge-shaped and banana-shaped molecules are investigated.
openaire +2 more sources
Flexoelectricity in ferroelectric materials
IET Nanodielectrics, 2019 Flexoelectricity is a gradient electromechanical effect that exists in all solid dielectrics. The effect was first predicted in the late 1950s, but received little interest because it was expected to be small.
Wanfeng Zhou, Pan Chen, Baojin Chu
doaj +1 more source
Modelling the flexoelectric effect in solids: A micromorphic approach [PDF]
Computer Methods in Applied Mechanics and Engineering, 2020 Flexoelectricity is characterised by the coupling of the gradient of the deformation and the electrical polarization in a dielectric material. A novel micromorphic approach is presented to accommodate the resulting higher-order gradient contributions arising in this highly-nonlinear and coupled problem within a classical finite element setting.
McBride, Andrew +2 more
openaire +2 more sources
Flexoelectric effect on thickness-shear vibration of a rectangular piezoelectric crystal plate
Materials Research Express, 2021 Thickness-shear (TSh) vibration of a rectangular piezoelectric crystal plate is studied with the consideration of flexoelectric effect in this paper. The developed theoretical model is based on the assumed displacement function which includes the anti ...
Yang Zheng, Bin Huang, Ji Wang
doaj +1 more source
iScience, 2023 Summary: Polymer-ceramic composites are commonly used as flexoelectric films. In existing studies, the flexoelectric effect of composites are generally improved by adjusting the material structures or adding ferroelectric materials.
Yujie Wei +7 more
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