铁电畴动力学的随机场模型:用拉伸指数函数分析

Proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics, 2002. ISAF 2002. Pub Date : 2002-05-28 DOI:10.1109/ISAF.2002.1195859

D. Viehland, J. Li

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引用次数: 0

摘要

用电流瞬态法研究了0.7Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-0.3PbTiO/sub 3/的极化反转和畴动力学。作为外加电场的函数进行了研究。瞬态动力学已被建模为一个拉伸指数型函数。我们认为，在外加磁场作用下，在随机淬火缺陷附近会发生极性团簇的反极化成核。

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A random-field model for ferroelectric domain dynamics: analysis by stretched exponential functions

Polarization reversal and domain dynamics have been investigated in 0.7Pb(Mg/sub 1/3/Nb/sub 2/3/)O/sub 3/-0.3PbTiO/sub 3/ using a method of current transients. Investigations were performed as a function of applied electric field. The kinetics of the transients have been modeled to a stretched exponential type function. We believe that nucleation of polar clusters with a reversed polarization occurs under applied field in the vicinity of randomly quenched defects.

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Proceedings of the 13th IEEE International Symposium on Applications of Ferroelectrics, 2002. ISAF 2002.

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