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Flexoelectricity : ウィキペディア英語版
Flexoelectricity

Flexoelectricity is a property of a dielectric material whereby it exhibits a spontaneous electrical polarization induced by a strain gradient. Flexoelectricity is not the same as Ferroelasticity.
The electric polarization due to mechanical stress in a dielectric is given by
:P_i=d_\sigma_+\mu_\frac
where the first term corresponds to the direct piezoelectric effect and the second term corresponds to the flexoelectric polarization induced by the strain gradient.
Here, the flexoelectric coefficient, \mu_, is a fourth-rank polar tensor and d_ is the coefficient corresponding to the direct piezoelectric effect.
== See also ==

* Piezoelectricity
* Ferroelectricity
* Ferroelasticity

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Flexoelectricity」の詳細全文を読む



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