Light Tunable Gratings Based on Flexoelectric Effect in Photoresponsive Bent‐Core Nematics

2019 ◽  
Vol 7 (8) ◽  
pp. 1801790 ◽  
Author(s):  
Hongzhen Jing ◽  
Mingya Xu ◽  
Ying Xiang ◽  
Everett Wang ◽  
Dongfeng Liu ◽  
...  
Keyword(s):  
Flexoelectric Effect ◽  
Tunable Gratings

A non-classical theory of elastic dielectrics incorporating couple stress and quadrupole effects: part I – reconsideration of curvature-based flexoelectricity theory

2021 ◽  
pp. 108128652110015
Author(s):  
YL Qu ◽  
GY Zhang ◽  
YM Fan ◽  
F Jin
Keyword(s):  
Classical Theory ◽  
Couple Stress ◽  
Couple Stress Theory ◽  
Constitutive Relations ◽  
Stress Theory ◽  
Isotropic Materials ◽  
Flexoelectric Effect ◽  
Beam Bending ◽  
Gradient Theories ◽  
Anisotropic And Isotropic Materials

A new non-classical theory of elastic dielectrics is developed using the couple stress and electric field gradient theories that incorporates the couple stress, quadrupole and curvature-based flexoelectric effects. The couple stress theory and an extended Gauss’s law for elastic dielectrics with quadrupole polarization are applied to derive the constitutive relations of this new theory through energy conservation. The governing equations and the complete boundary conditions are simultaneously obtained through a variational formulation based on the Gibbs-type variational principle. The constitutive relations of general anisotropic and isotropic materials with the corresponding independent material constants are also provided, respectively. To illustrate the newly proposed theory and to show the flexoelectric effect in isotropic materials, one pure bending problem of a simply supported beam is analytically solved by directly applying the formulas derived. The analytical results reveal that the flexoelectric effect is present in isotropic materials. In addition, the incorporation of both the couple stress and flexoelectric effects always leads to increased values of the beam bending stiffness.

Flexoelectric effect in boron nitride–graphene heterostructures

2021 ◽  
Author(s):  
S. I. Kundalwal ◽  
V. K. Choyal ◽  
Vijay Choyal
Keyword(s):  
Boron Nitride ◽  
Flexoelectric Effect

Flexoelectricity in atomic monolayers from first principles

Nanoscale ◽  
2020 ◽  
Author(s):  
Shashikant Kumar ◽  
David Codony ◽  
Irene Arias ◽  
Phanish Suryanarayana
Keyword(s):  
Density Functional Theory ◽  
Transition Metal ◽  
Ab Initio ◽  
First Principles ◽  
Density Functional ◽  
Transition Metal Dichalcogenides ◽  
Functional Theory ◽  
Group Iii ◽  
Flexoelectric Effect ◽  
Metal Dichalcogenides

We study the flexoelectric effect in fifty-four select atomic monolayers using ab initio Density Functional Theory (DFT). Specifically, considering representative materials from each of Group III monochalcogenides, transition metal dichalcogenides...

23-1:Distinguished Student Paper: Flexoelectric Effect on Image Flickering of Fringe Field Switching LCDs

2016 ◽  
Vol 47 (1) ◽  
pp. 274-277 ◽  
Author(s):  
Haiwei Chen ◽  
Fenglin Peng ◽  
Minggang Hu ◽  
Shin-Tson Wu
Keyword(s):  
Fringe Field ◽  
Flexoelectric Effect ◽  
Student Paper

First Observation of the Converse Flexoelectric Effect in Bilayer Lipid Membranes

1994 ◽  
Vol 98 (12) ◽  
pp. 3076-3079 ◽  
Author(s):  
A. T. Todorov ◽  
A. G. Petrov ◽  
J. H. Fendler
Keyword(s):  
Lipid Membranes ◽  
Bilayer Lipid Membranes ◽  
Bilayer Lipid ◽  
Flexoelectric Effect
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