Abstract The evolution of the dynamic hysteresis with electrical field amplitude (E0) and frequency (f) in the relaxor-based ferroelectric 0.71Pb(Mg1/3Nb2/3)O3–0.29PbTiO3 (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 follows the power law A > ∝ f α E 0 β in the low and high E0 regions, but the power law is not obeyed in the intermediate region due to the complex collective contributions of 180° and non-180° domains. The frequency dependent scaling relationship can be separated into two regions, and presents a unique behavior when the field level E0 is equal or lower than the coercive field Ec. The hysteresis area decreases continually with the increase of frequency when E0 first increases then decreases for high E0 situation (E0 ≥ 2 E c ). Related electrical field and frequency dependent polarization reversal mechanisms are proposed based on the experimental observations.

中文翻译：

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基于弛豫的铁电体 0.71Pb(Mg1/3Nb2/3)O3–0.29PbTiO3 单晶中动态滞后的电场和频率相关标度行为

摘要 系统地研究了基于弛豫的铁电体 0.71Pb(Mg1/3Nb2/3)O3–0.29PbTiO3 (PMN-29PT) 单晶的动态滞后随电场幅度 (E0) 和频率 (f) 的演变。我们的研究结果表明，PMN-29PT 单晶中电场依赖的标度关系可以分为三个区域，在低和高 E0 区域，滞后区遵循幂律 A > ∝ f α E 0 β，但功率由于 180° 和非 180° 域的复杂集体贡献，在中间区域不遵守法律。频率相关的标度关系可以分为两个区域，并且当场水平 E0 等于或低于矫顽场 Ec 时呈现出独特的行为。当 E0 先增大后减小，当 E0 较高时（E0 ≥ 2 E c ），滞后区随着频率的增加而不断减小。基于实验观察提出了相关的电场和频率相关的极化反转机制。