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Stretched exponential relaxation in perovskite ferroelectrics after cyclic loading

The switching kinetics in fatigued polycrystalline bulk ferroelectrics do not exhibit relaxation with a singular time constant but rather stretched exponential behavior. Several microscopic mechanisms are discussed to explain this effect for a polycrystalline material. Some of the mechanisms may app...

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Published in:Journal of applied physics 2004-02, Vol.95 (3), p.1386-1390
Main Authors: Lupascu, Doru C., Fedosov, Sergei, Verdier, Cyril, Rödel, Jürgen, von Seggern, Heinz
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Language:English
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description The switching kinetics in fatigued polycrystalline bulk ferroelectrics do not exhibit relaxation with a singular time constant but rather stretched exponential behavior. Several microscopic mechanisms are discussed to explain this effect for a polycrystalline material. Some of the mechanisms may apply equally well to thin films, others are characteristic of a macroscopic sample or a thick film.
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title Stretched exponential relaxation in perovskite ferroelectrics after cyclic loading
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