Abstract Dielectric properties of nanostructured strontium titanate samples sintered from nanoparticles obtained by grinding of previously synthesized SrTiO3 and nanoparticles obtained by chemical deposition were studied in the temperature range 10–300 K. The first sample shows the characteristic features of a relaxor ferroelectric. The dispersion of the dielectric response observed in the vicinity of 40 K is characterized by two relaxation processes, with broad spectra of relaxation times. It is assumed that the “high-temperature” relaxation process is associated with the dynamics of the elastic domain. Possible mechanisms for the interaction of elastic deformation and polarization are discussed.

中文翻译：

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机械活化超细 SrTiO3 的类弛豫行为

摘要 在 10-300 K 的温度范围内研究了由研磨先前合成的 SrTiO3 获得的纳米颗粒和通过化学沉积获得的纳米颗粒烧结而成的纳米结构钛酸锶样品的介电性能。第一个样品显示了弛豫铁电体的特征。在 40 K 附近观察到的介电响应的色散以两个弛豫过程为特征，具有宽的弛豫时间谱。假设“高温”松弛过程与弹性域的动力学有关。讨论了弹性变形和极化相互作用的可能机制。