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Kinetic study of PZN single crystal polarization under a static electric field

Abstract : A kinetic effect is evidenced in lead zinc niobate (PZN). We measured the time dependencies of the polarisation P(t) of a single crystal. At a given temperature and electric field, P(t) is described by the expression P(t) = P∞(T) f(t/τ(E,T)) where τ(E,T) is the incubation time above which the sample is completely polarised. The τ(E,T) was fitted using the exponential law exp[(W+kδT/E)/kT] where the activation energy W is equal to 0.91±0.36 eV and δT is equal to 2.2×108 K V/m in the 300-360 K temperature range. Taking into account this kinetic effect the electric-field-temperature diagram and the existence of an electric field threshold were discussed.
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https://hal-centralesupelec.archives-ouvertes.fr/hal-02270831
Contributor : Amandine Lustrement <>
Submitted on : Monday, August 26, 2019 - 12:38:56 PM
Last modification on : Wednesday, July 1, 2020 - 4:22:03 PM

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Hichem Dammak, A. Lebon, G. Calvarin. Kinetic study of PZN single crystal polarization under a static electric field. Ferroelectrics, 1999, 235 (1), pp.151-158. ⟨10.1080/00150199908214875⟩. ⟨hal-02270831⟩

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