Abstract The dielectric properties of a composite material obtained by embedding of the Rb2ZnCl4 salt into a matrix of porous Al2O3 film with an average pore diameter of about 300 nm were studied within the temperature range 110–350 K. A wide temperature hysteresis of dielectric permittivity exceeding the range of experimental temperatures was revealed. A broad maximum of dielectric permittivity was found, the position of which varies within 230–330 K, depending on the thermal prehistory of the sample. It is supposed that this maximum is associated with a ferroelectric phase transition in the Rb2ZnCl4 inclusions.

中文翻译：

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Rb2ZnCl4 在多孔氧化铝中的介电响应

摘要 研究了通过将 Rb2ZnCl4 盐嵌入平均孔径约为 300 nm 的多孔 Al2O3 薄膜基体中获得的复合材料在 110–350 K 温度范围内的介电性能。揭示了实验温度的范围。发现介电常数的最大值很大，其位置在 230-330 K 之间变化，这取决于样品的热史前史。假设该最大值与 Rb2ZnCl4 夹杂物中的铁电相变有关。