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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Electric field and frequency dependent scaling behavior of dynamic hysteresis in relaxor-based ferroelectric 0.71Pb(Mg1/3Nb2/3)O-3-0.29PbTiO(3) single crystal
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Electric field and frequency dependent scaling behavior of dynamic hysteresis in relaxor-based ferroelectric 0.71Pb(Mg1/3Nb2/3)O-3-0.29PbTiO(3) single crystal

机译：电磁场和频率依赖性缩放行为动态滞后于基于松弛的铁电0.71PB（MG1 / 3NB2 / 3）O-3-0.29PBTIO（3）单晶

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摘要

The evolution of the dynamic hysteresis with electrical field amplitude (E-0) and frequency (f) in the relaxor-based ferroelectric 0.71Pb(Mg1/3Nb2/3)O-3-0.29PbTiO(3) (PMN-29PT) single crystal has been investigated systematically. Our results showed that the electric field dependent scaling relationship in PMN-29PT single crystal can be divided to three regions, and the hysteresis area A follows the power law A proportional to f(alpha)E(0)(beta) in the low and high E-0 regions, but the power law is not obeyed in the intermediate region due to the complex collective contributions of 180 degrees and non-180 degrees domains. The frequency dependent scaling relationship can be separated into two regions, and presents a unique behavior when the field level E-0 is equal or lower than the coercive field E-c. The hysteresis area decreases continually with the increase of frequency when E-0 E- (c), while A first increases then decreases for high E-0 situation (E-0 = 2E(c)). Related electrical field and frequency dependent polarization reversal mechanisms are proposed based on the experimental observations. (C) 2018 Elsevier B.V. All rights reserved.
机译：基于松弛的铁电0.71pb（Mg1 / 3nb2 / 3）O-3-0.29pbtio（3）单一的松弛型铁电0.71pb（mg1 / 3nb2 / 3）和频率（f）的动态滞后的演变和频率（f）水晶已经系统地调查。我们的研究结果表明，PMN-29pt单晶中的电场依赖性缩放关系可以分为三个区域，滞后区域＆ a＆遵循权力法＆ a＆在低E-0区域中的F（α）e（0）（0）（0）（β）成比例，但由于180度和非180度结构域的复杂集体贡献，电力法在中间区域不服从。频率相关的缩放关系可以分成两个区域，并且当场级E-0等于或低于矫顽字段E-C时呈现唯一的行为。随着E-0 e-（c）的频率的增加，滞后区域不断降低，而频率在Δ中延长，而＆ a＆然后，首先增加高E-0情况（E-0＆ = 2E（c））。基于实验观察，提出了相关电场和频率相关极化反转机制。 （c）2018年elestvier b.v.保留所有权利。

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