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摘要翻译：
提出了弛豫铁电体中极性纳米区冻结的物理机制。假设PNRs标度团簇的重定向活化能与团簇的平均体积有关，当团簇体积达到渗流极限时，特征弛豫时间$\tau$发生发散。应用连续介质渗流的平均场理论，导出了温度依赖的Vogel-Fulcher方程。
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英文标题：
《Vogel-Fulcher freezing in relaxor ferroelectrics》
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作者：
R. Pirc and R. Blinc
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最新提交年份：
2007
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分类信息：
一级分类：Physics 物理学
二级分类：Disordered Systems and Neural Networks 无序系统与神经网络
分类描述：Glasses and spin glasses; properties of random, aperiodic and quasiperiodic systems; transport in disordered media; localization; phenomena mediated by defects and disorder; neural networks
眼镜和旋转眼镜；随机、非周期和准周期系统的性质；无序介质中的传输；本地化；由缺陷和无序介导的现象；神经网络
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一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
A physical mechanism for the freezing of polar nanoregions (PNRs) in relaxor ferroelectrics is presented. Assuming that the activation energy for the reorientation of a cluster of PNRs scales with the mean volume of the cluster, the characteristic relaxation time $\tau$ is found to diverge as the cluster volume reaches the percolation limit. Applying the mean field theory of continuum percolation, the familiar Vogel-Fulcher equation for the temperature dependence of $\tau$ is derived.
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PDF链接：
https://arxiv.org/pdf/705.3732
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