[(1-x)Ba0.9Ca0.1TiO3-x(BaSn0.2Ti0.8O3)]陶瓷铁电迟滞参数的温度相关动态迟滞标度

IF 1.3 4区物理与天体物理 Q4 PHYSICS, CONDENSED MATTER

Ferroelectrics Letters Section Pub Date : 2017-11-02 DOI:10.1080/07315171.2017.1397462

S. Singh, K. Srikanth, Bhim Singh

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引用次数: 3

摘要

本文研究了在x = 0、0.4、0.45、0.5和0.6样品下，工艺参数对[(1-x)Ba0.9Ca0.1TiO3-x(BaSn0.2Ti0.8O3)]陶瓷铁电迟滞行为的影响。提出了矫顽力场(Ec)和残余极化(Pr)的铁电迟滞以温度为标度关系。系统地建立了基于标度的滞后参数幂律温度指数。在1480℃烧结5 h时，Ec和Pr的结垢率分别为Ec α T - 0.42、Ec α T - 0.32、Ec α T - 0.35和Ec α T - 0.34,Pr α T - 2.20、Pr α T - 2.07、Pr α T - 2.09和Pr α T - 2.12。在此基础上，利用Arrhenius定律估计了温度(T)下的反向开关极化(Pbc)，并计算了平均活化能。在17 kV/cm下，x = 0.6样品的畴切换激活能最大为0.199 eV。

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Temperature dependent dynamic hysteresis scaling of ferroelectric hysteresis parameters of [(1-x)Ba0.9Ca0.1TiO3-x(BaSn0.2Ti0.8O3)] ceramics

ABSTRACT This article presents the effect of processing parameters on the ferroelectric hysteresis behavior of [(1-x)Ba0.9Ca0.1TiO3-x(BaSn0.2Ti0.8O3)] ceramics for x = 0, 0.4, 0.45, 0.5 and 0.6 samples. The ferroelectric hysteresis scaling relations for coercive field (Ec) and remnant polarization (Pr) in the form of temperature have been proposed. The power law temperature exponents based on scaling were systematically established for the hysteresis parameters. The temperature dependent scaling of Ec and Pr at sintering temperature of 1480°C for 5 hr yields Ec α T−0.42, Ec α T−0.32, Ec α T−0.35 and Ec α T−0.34 and Pr α T−2.20, Pr α T−2.07,Pr α T−2.09 and Pr α T−2.12 respectively. Further, to analyze the domain dynamics, back switching polarization (Pbc) in terms of temperature (T) was also estimated by Arrhenius law and the average activation energy was evaluated. The maximum activation energy for domain switching is found to be 0.199 eV at 17 kV/cm for x = 0.6 sample.

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来源期刊

Ferroelectrics Letters Section 物理-物理：凝聚态物理

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

4.8 months

期刊介绍： Ferroelectrics Letters is a separately published section of the international journal Ferroelectrics. Both sections publish theoretical, experimental and applied papers on ferroelectrics and related materials, including ferroelastics, ferroelectric ferromagnetics, electrooptics, piezoelectrics, pyroelectrics, nonlinear dielectrics, polymers and liquid crystals. Ferroelectrics Letters permits the rapid publication of important, quality, short original papers on the theory, synthesis, properties and applications of ferroelectrics and related materials.