Results 81 to 90 of about 1,489 (205)

First-Principles Theory of Flexoelectricity [PDF]

open access: yes, 2016
56 pages, 12 figures, 7 tables. To be published in "Flexoelectricity in Solids: From Theory to Applications", A.K. Tagantsev and P. Yudin, eds. (World Scientific, Singapore)
Stengel, Massimiliano, Vanderbilt, David
openaire   +2 more sources

Defects-enhanced flexoelectricity in nanostructures [PDF]

open access: yes, 2009
Recent studies show that low dimensional nanostructures may exhibit nonlocal electromechanical effects such as flexoelectricity. Despite the recent progress in nanostructure growth techniques imperfections such as defects are practically unavoidable ...
Melnik, Roderick, Patil, Sunil R.
core   +1 more source

Fracture toughening and toughness asymmetry induced by flexoelectricity [PDF]

open access: yes, 2020
Cracks generate the largest strain gradients that any material can withstand. Flexoelectricity (coupling between strain gradient and polarization) must therefore play an important role in fracture physics. Here we use a self-consistent continuum model to
Catalan, Gustau   +4 more
core  

Fracture toughening and toughness asymmetry induced by flexoelectricity

open access: yes, 2015
Cracks generate the largest strain gradients that any material can withstand. Flexoelectricity (coupling between strain gradient and polarization) must therefore play an important role in fracture physics. Here we use a self-consistent continuum model to
Catalan, Gustau   +5 more
core   +1 more source

Modified Continuum Mechanics Modeling on Size-Dependent Properties of Piezoelectric Nanomaterials: A Review

open access: yesNanomaterials, 2017
Piezoelectric nanomaterials (PNs) are attractive for applications including sensing, actuating, energy harvesting, among others in nano-electro-mechanical-systems (NEMS) because of their excellent electromechanical coupling, mechanical and physical ...
Zhi Yan, Liying Jiang
doaj   +1 more source

Constructive and destructive interplay between piezoelectricity and flexoelectricity in flexural sensors and actuators [PDF]

open access: yes, 2015
Flexoelectricity is an electromechanical effect coupling polarization to strain gradients. It fundamentally differs from piezoelectricity because of its size-dependence and symmetry.
Arias Vicente, Irene   +1 more
core   +1 more source

Size-Dependent Finite Element Analysis of Functionally Graded Flexoelectric Shell Structures Based on Consistent Couple Stress Theory

open access: yesAerospace
The functionally graded (FG) flexoelectric material is a potential material to determine the structural morphing of aircrafts. This work proposes the penalty 20-node element based on the consistent couple stress theory for analyzing the FG flexoelectric ...
Zhuo Deng, Yan Shang
doaj   +1 more source

Spin flexoelectricity and chiral spin structures in magnetic films

open access: yes, 2015
In this short review a broad range of chiral phenomena observed in magnetic films (spin cycloid and skyrmion structures formation as well as chirality dependent domain wall motion) is considered under the perspective of spin flexoelectricity, i.e the ...
Zvezdin, A. K.   +3 more
core   +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 ...
Bersuker, Issac B., I. B. Bersuker
core   +1 more source

Flexoelectricity in liquid crystals: theory, experiments and applications

open access: yes, 2013
This book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid ...
Eber, Nandor, Buka, Agnes
core  

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