Results 81 to 90 of about 1,274 (207)

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  

Flexoelectric Effect on Vibration of Piezoelectric Microbeams Based on a Modified Couple Stress Theory

open access: yesShock and Vibration, 2017
A novel electric Gibbs function was proposed for the piezoelectric microbeams (PMBs) by employing a modified couple stress theory. Based on the new Gibbs function and the Euler-Bernoulli beam theory, the governing equations which incorporate the effects ...
Xingjia Li, Ying Luo
doaj   +1 more source

Advances in Regulating Strategies and Applications of Ferroelectric Materials

open access: yesAdvanced Physics Research, Volume 5, Issue 4, April 2026.
To meet the demand for precise control of performance in nanoelectronic devices, this paper systematically reviews the latest advances in controlling ferroelectric properties through strategies such as external field modulation, low‐dimensional confinement, interface engineering, and topological structure design.
Jianying Ji, Cong Liu, Dan Luo, Zhou Li
wiley   +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

Investigation of flexoelectricity and ionic contamination in nematic liquid crystals

open access: yes, 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  

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

Flexoelectricity in Nematics Confined to Cylindrical Geometry

open access: yes, 2015
External fields act on the order parameter, the tensor which is describing the local order of molecules, driving the liquid crystal cells to their final configuration.
Sparavigna, Amelia Carolina
core   +1 more source

A quantitative model of triboelectric charge transfer

open access: yesFriction
Triboelectricity, when rubbing or contacting materials causes electric charge transfer, is ubiquitous across many fields, and has been studied in detail for centuries. Despite this, a complete description of triboelectricity remains elusive.
Karl P. Olson, Laurence D. Marks
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

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

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