Results 141 to 150 of about 782 (181)

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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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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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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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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Flexoelectricity and elasticity of asymmetric biomembranes

Physical Review E, 2002
In view of the well-established charge and dipolar asymmetry of the two leaflets of a native membrane, the theory of flexoelectricity (and curvature elasticity) is extended to take into account this asymmetry using linear and nonlinear forms of the Poisson-Boltzmann equation.
Alexander G, Petrov, Frederick, Sachs
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Piezoelectricity and flexoelectricity in crystalline dielectrics

Physical Review B, 1986
Note: Tagantsev, Ak Af Ioffe Engn Phys Inst,Leningrad 194021,UssrPart 2E4504Times Cited:19Cited References Count:16 Reference LC-ARTICLE-1986-010doi:10.1103/PhysRevB.34.5883 Record created on 2006-08-21, modified on 2017-11 ...
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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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Flexoelectricity in the Hybrid Aligned Nematic Cell

Molecular Crystals and Liquid Crystals, 1987
The reorientation process of an HAN cell submitted to electric fields is studied both theoretically and experimentally. To isolate the flexoelectric effect from the dielectric one, the experiments are made under d.c. and a.c. excitations. Preliminary results on 6 μm thick MBBA have been reported.
B. Valenti, C. Bertoni, BARBERO, GIOVANNI, P. Taverna Valabrega, R. Bartolino   +4 more
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