Results 61 to 70 of about 1,208 (176)

Flexoelectric Transduction in Hafnium-based NEMS

Flexoelectricity, the coupling between electric polarization and strain gradient, is a universal phenomenon in dielectric materials. When a material bends, electric charges are generated, and inversely, applying an electric voltage induces bending.
Moreno Garcia, Daniel
core   +1 more source

Continuously controllable photoconductance in freestanding BiFeO₃ by the macroscopic flexoelectric effect. [PDF]

Nat Commun, 2020
Guo R, You L, Lin W, Abdelsamie A, Shu X, Zhou G, Chen S, Liu L, Yan X, Wang J, Chen J.   +10 more
europepmc   +1 more source

Investigation of flexoelectricity and ionic contamination in nematic liquid crystals

, 2009
The work presented is a study of nematic liquid crystal physical properties. One of the phenomenon investigated is the bistability or in other words, the ability of the director of the material to rest in different orientations as function of the ...
Trabi, Christophe Lionel, Trabi, CL
core  

Nanoscale flexoelectric energy harvesting

, 2014
One of the most tantalizing applications of piezoelectricity is to harvest energy from ambient mechanical vibrations for powering micro and nano devices.
Deng, Qian, Qian Deng, Pradeep Sharma, Alper Erturk, Sharma, Pradeep, Mejdi Kammoun, Kammoun, Mejdi, Erturk, Alper   +7 more
core   +1 more source

Nanomechanics of flexoelectric switching

, 2021
We examine the phenomenon of flexoelectric switching of polarization in ultrathin films of barium titanate induced by a tip of an atomic force microscope (AFM).
Catalan, Gustau, Gruverman, A., Očenášek, Jan, Bark, C.W., Lu, Haidong, Eom, C.B., Alcalá, Jorge   +6 more
core  

Nanomechanics of flexoelectric switching

, 2015
We examine the phenomenon of flexoelectric switching of polarization in ultrathin films of barium titanate induced by a tip of an atomic force microscope (AFM).
Alcalá Cabrelles, Jorge
core   +1 more source

THRESHOLD FLEXOELECTRIC EFFECT IN NEMATIC LIQUID CRYSTAL

, 1978
Une résolution complète du problème d'instabilité flexoélectrique est donnée dans le cas d'un échantillon d'épaisseur finie et sans approximations sur les constantes élastiques.Total solution of flexoelectric instability problem is given for finite ...
V. G. CHIGRINOV, Y. P. BOBYLEV, Bobylev, Y. P., S. A. PIKIN, Chigrinov, V. G., Pikin, S. A.   +5 more
core   +1 more source

Anomalous dipolar flexoelectric effect in a nematic main-chain polymer

An anomalously large flexoelectric effect is predicted in the nematic phase of thermotropic main-chain polymers, which have a defined orientation of subsequent monomers bonded on the chain. We identify two different ranges of order parameters.
Petschek R.G. (Creatorcre), Terentjev E.M. (Creatorcre)   +1 more
core  

Static stability analysis of nanoscale piezoelectric shells with flexoelectric effect based on couple stress theory

, 2018
In this article, a non-classical shell model incorporating flexoelectric effect is presented to investigate the buckling behavior of piezoelectric cylindrical nanoshell based on the couple stress theory.
Wang, Baolin (R17839), Zeng, Saixing, Wang, Kaifa   +2 more
core   +1 more source

Flexoelectric effect in non-homogenous dielectrics

, 2022
Flexoelectricity is a different electromechanical coupling without this material symmetry limitations, hence universal for all dielectrics. Flexoelectricity relies on symmetry breaking beyond the material chemistry by either boundary conditions (bending, torsion), topology (architected metamaterials), the combination of multiple materials (composites ...
openaire   +1 more source