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首页> 外文期刊>Japanese journal of applied physics.Part 1.Regular papers & short notes >Correlation Between Tolerance Factor and Temperature Coefficient of Dielectric Constant of (Ba,Sr)(Zn-1/3Ta-2/3)O-3 Dielectric Resonator
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Correlation Between Tolerance Factor and Temperature Coefficient of Dielectric Constant of (Ba,Sr)(Zn-1/3Ta-2/3)O-3 Dielectric Resonator

机译：（Ba，Sr）（Zn-1 / 3Ta-2 / 3）O-3介质谐振器的介电常数与温度系数的相关系数

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摘要

The effect of substitution of Sr at the A site of Ba(Zn-1/3Ta-2/3)O-3 was investigated with respect to tolerance factor (t) which determines the degree of packing of A and B site ions of perovskite unit cell, with an intension to understand the correlation between the temperature dependent dielectric properties with structure. The investigation reveals that the Ba rich compositions with highly symmetric cubic phase exhibits negative variation of dielectric constant with temperature and the Sr rich compositions with distorted structure always show positive variation of dielectric constant with temperature. The profile of τε variation of all the compositions was scaled with respect of reduced temperature which exhibits an exact signature of τε variation with the compositions at room temperature. The observed mechanism was explained using Clausius Mossoti equation.
机译：关于耐受因子（t），研究了Ba（Zn-1 / 3Ta-2 / 3）O-3的Sr在Ba（Zn-1 / 3Ta-2 / 3）O-3的A位上的取代作用，该因素决定了钙钛矿的A和B位离子的堆积程度。单元电池，旨在了解与温度相关的介电特性与结构之间的关系。研究表明，具有高度对称立方相的富Ba组分的介电常数随温度变化为负值，具有畸变结构的富Sr的成分始终随温度变化为正值。关于降低的温度来缩放所有组合物的τε变化的轮廓，其在室温下表现出τε变化的准确特征。使用Clausius Mossoti方程解释了观察到的机理。

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