Results 211 to 220 of about 4,906 (246)

When Flexoelectricity Drives Triboelectricity

Nano Letters, 2022
Triboelectricity has been known since antiquity, but the fundamental science underlying this phenomenon lacks consensus. We present a flexoelectric model for triboelectricity where contact deformation induced band bending at the nanoscale is the driving force for charge transfer.
Christopher A. Mizzi, Laurence D. Marks
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Flexoelectricity in metals

Journal of Applied Physics, 2021
Flexoelectricity is an electromechanical phenomenon that, unlike piezoelectricity, is present in any material. While the largest flexoelectric response is observed in ferroelectrics and related materials, its manifestations in various other materials are of great interest for a broad scope of scientific and industrial tasks.
A. S. Yurkov, P. V. Yudin
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Flexoelectric spectroscopy

Journal of Physics: Condensed Matter, 2013
Flexoelectricity is an increasingly popular subject because it can be extremely large in thin films and permits switching of devices in nonpolar (non-piezoelectric) crystals via application of inhomogeneous stresses. However, recent work has been limited to macroscopic measurement of voltage or strain.
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Flexoelectricity in Electroconvection

Molecular Crystals and Liquid Crystals, 2009
We reexamine the influence of the flexoelectricity on the electroconvection (EC), the effect which has previously been studied in the conductive EC regime only. Now we extend our studies to the dielectric EC, and to the parameter range for which the standard model of EC excludes the existence of the instability.
T. Tóth-Katona, N. Éber, Á. Buka
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Surface polarization and flexoelectric effect

Journal of Applied Physics, 1991
In order to evaluate the order of magnitude and to establish the origin of the surface polarization, experimental investigations of direct piezoelectrical effect in nematic liquid crystals have been performed. The experimental setup used allows the temperature dependence of the electrical response of a nematic sample, submitted to periodic acoustic ...
BARBERO, GIOVANNI, A. P. KREKHOV, A. N. CHUVYROV, D. A. SCALDIN   +3 more
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Advancements of Flexoelectric Materials and Their Implementations in Flexoelectric Devices

Advanced Functional Materials
AbstractFlexoelectricity, a universal electromechanical coupling phenomenon, has triggered new feasibilities of advancements in functional materials, especially for nanoscale materials. The strong flexoelectric response is initially discovered in ceramic materials with high permittivity, and then the past decades have witnessed the expansion of ...
Xu Liang, Huiting Dong, Yifan Wang, Qianqian Ma, Hongxing Shang, Shuling Hu, Shengping Shen   +6 more
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Flexoelectricity and Piezoelectricity

2001
Physical Review ...
Cepic, Mojca, Zeks, Bostjan
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Flexoelectricity and Mechanotransduction

2007
Publisher Summary The process of mechanotransduction in membranes benefits from specialized and localized elements such as stress‐activated channels, and also from the collective properties of the mechanosensitive membranes as a whole. These collective properties evolve from the liquid crystal character of membranes and are best understood in terms ...
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A trapezoidal flexoelectric accelerometer

Journal of Intelligent Material Systems and Structures, 2013
In this article a new acceleration sensor using flexoelectric barium strontium titanate cantilever was designed, fabricated, and tested for vibration monitoring. The flexoelectric sensors were configured as a trapezoidal unimorph with a barium strontium titanate layer bonded onto a steel substrate.
Huang, Wenbin, Kwon, Seol Ryung, Zhang, Shujun, Yuan, Fuh Gwo, Jiang, Xiaoning   +4 more
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Advancements and Prospects of Flexoelectricity

ACS Applied Materials & Interfaces
The flexoelectric effect, as a novel form of the electromechanical coupling phenomenon, has attracted significant attention in the fields of materials science and electronic devices. It refers to the interaction between strain gradients and electric dipole moments or electric field intensity gradients and strain.
Yanlong Xia, Weiqi Qian, Ya Yang
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