Results 31 to 40 of about 4,906 (246)

Flexoelectric materials and their related applications: A focused review

open access: yesJournal of Advanced Ceramics, 2019
Flexoelectricity refers to the mechanical-electro coupling between strain gradient and electric polarization, and conversely, the electro-mechanical coupling between electric field gradient and mechanical stress. This unique effect shows a promising size
Longlong Shu   +5 more
doaj   +1 more source

Pseudo Jahn-Teller Effect In The Origin Of Enhanced Flexoelectricity [PDF]

open access: yes, 2015
The controversy between the theory and experiment in explaining the origin of enhanced flexoelectricity is removed by taking into account the pseudo Jahn-Teller effect (PJTE) which, under certain conditions, creates local dipolar distortions of dynamic ...
I. B. Bersuker, Kogan S. M.
core   +1 more source

Geometrical Nonlinearity for a Timoshenko Beam with Flexoelectricity

open access: yesNanomaterials, 2021
The Timoshenko beam model is applied to the analysis of the flexoelectric effect for a cantilever beam under large deformations. The geometric nonlinearity with von Kármán strains is considered.
Miroslav Repka   +2 more
doaj   +1 more source

Bichiral structure of feroelectric domain wall driven by flexoelectricity [PDF]

open access: yes, 2012
The influence of flexoelectric coupling on the internal structure of neutral domain walls in tetragonal phase of perovskite ferroelectrics is studied.
A. K. Tagantsev   +8 more
core   +2 more sources

Fundamentals of flexoelectricity in solids [PDF]

open access: yesNanotechnology, 2013
The flexoelectric effect is the response of electric polarization to a mechanical strain gradient. It can be viewed as a higher-order effect with respect to piezoelectricity, which is the response of polarization to strain itself. However, at the nanoscale, where large strain gradients are expected, the flexoelectric effect becomes appreciable. Besides,
Yudin Peter V., Tagantsev Alexander K.
openaire   +2 more sources

Flexoelectric Effect in Solids

open access: yesAnnual 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
openaire   +3 more sources

Flexoelectricity in a metal/ferroelectric/semiconductor heterostructure

open access: yesAIP Advances, 2018
The flexoelectricity in a 100 nm-thick BaTiO3 (BTO) thin film based metal/ferroelectric insulator/semiconductor (MFS) heterostructure was reported in this letter.
Shujin Huang   +6 more
doaj   +1 more source

Switching of both local ferroelectric and magnetic domains in multiferroic Bi0.9La0.1FeO3 thin film by mechanical force [PDF]

open access: yes, 2016
Cross-coupling of ordering parameters in multiferroic materials by multiple external stimuli other than electric field and magnetic field is highly desirable from both practical application and fundamental study points of view. Recently, mechanical force
Cheng, Zhenxiang   +3 more
core   +3 more sources

Quantum flexoelectric nanobending

open access: yesJournal of Applied Physics, 2021
The aim of this article is twofold. First, to develop a clear quantum theoretical playground where questions about the connection between strain fields and electric fields could be unambiguously explored. Second, as an application, to derive a criterion that establishes the length scale below which bent molecules, in particular, carbon nanotubes ...
openaire   +2 more sources

A Study on a New Method for Flexoelectric Coefficient Estimation of the Flexoelectric Unimorph Sensing Element

open access: yesApplied Mechanics, 2021
In a flexoelectric sensing element using bending mode, estimation of the flexoelectric coefficient was investigated using 3-D stress/strain analysis and experiments.
Seol Ryung Kwon, Yongrae Roh
doaj   +1 more source

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