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Dielectric Polarization

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dielectric polarization [‚dī·ə′lek·trik ‚pō·lə·rə′zā·shən]
(electricity)

Polarization, Dielectric 

(1) The displacement of positive and negative charges in opposite directions in a dielectric. Polarization occurs through the action of an electric field or other external factors, such as mechanical stress in the case of piezoelectric crystals. Dielectric polarization can also arise spontaneously in pyroelectric crystals, particularly in ferroelectrics.

(2) The dipole moment per unit volume of a dielectric.



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Dielectric polarization beneath the strip takes place which gives rise to the polarization current in addition to the already existing strip current [5].
00 Hardcover QC446 Nonlinear optics (NLO) is the branch of optics that describes the behavior of light in nonlinear media, that is, media in which the dielectric polarization P responds nonlinearly to the electric field E of the light.
As the temperature becomes higher, the state of polymer matrix may be considered as that similar to liquid, therefore, the mobility of ions and macromolecules toward the external electric field may be lowered because of the intensive thermal motion energy and the interfaces between POE matrix and fillers may also be destroyed because of the relatively low melting point (55[degrees]C in our case) of POE, which may result in the decrease of both dielectric polarization and dielectric loss.
 
 
 
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