A comprehensive study and detailed analysis of pyroelectric and electrocaloric effects in relaxor ferroelectrics based on lead magnesium niobate as a promising object for such investigations have been carried out. It was found that even at the maximum values of pyroelectric coefficients the electrocaloric response inextricably linked with the pyroelectric effect does not exceed 1 °C in the temperature range from 10 to 60 °C under DC electric field up to 60 kV/cm. These conditions are the most demanded for the operation of electrocaloric cooling devices. Vision for the future as to increasing the efficiency of the main elements for such devices is discussed.

中文翻译：

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松弛剂电热效应的特点

已经对基于铌酸镁铅的弛豫铁电体中的热释电和电热效应进行了全面研究和详细分析，作为此类研究的有希望的对象。发现即使在热释电系数的最大值处，在高达 60 kV/cm 的直流电场下，在 10 至 60 °C 的温度范围内，与热释电效应密不可分的电热响应也不超过 1 °C。这些条件对于电热冷却装置的运行是最需要的。讨论了关于提高此类设备主要元件效率的未来愿景。