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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Magnetocaloric effect in composite structures based on ferromagnetic-ferroelectric Pr_(0.6)Sr_(0.4)MnO_3/BaTiO_3 perovskites
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Magnetocaloric effect in composite structures based on ferromagnetic-ferroelectric Pr_(0.6)Sr_(0.4)MnO_3/BaTiO_3 perovskites

机译：铁磁-铁电Pr_（0.6）Sr_（0.4）MnO_3 / BaTiO_3钙钛矿复合结构的磁热效应

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摘要

We have prepared composite materials composed of ferromagnetic and ferroelectric compounds having the general formula (1 -x)Pr_(0.6)Sr_(0.4)MnO_3/BaTiO_3, with x is the molar ratio (x = 0.0, 0.03, 0.05, 0.10 and 0.30) using conventional ceramic double sintering process. We report the structural, magnetic and magnetocaloric properties of all samples. The presence of the two phases of Pr_(0.6)Sr_(0.4)MnO_3 (PSMO) and BaTi03 (BTO) was confirmed by X-ray diffraction (XRD) technique and the structural analysis. Magnetic measurements of magnetization versus temperature and magnetic applied field were performed. The temperature dependence of magnetization reveals that the composite samples show paramagnetic to ferromagnetic phase transition (PM-FM) when the temperature decreases.
机译：我们制备了由具有通式（1-x）Pr_（0.6）Sr_（0.4）MnO_3 / BaTiO_3的铁磁和铁电化合物组成的复合材料，其中x是摩尔比（x = 0.0、0.03、0.05、0.10和0.30 ）采用常规陶瓷双重烧结工艺。我们报告了所有样品的结构，磁性和磁热性质。通过X射线衍射（XRD）技术和结构分析证实了Pr_（0.6）Sr_（0.4）MnO_3（PSMO）和BaTiO3（BTO）两相的存在。进行磁化相对于温度和磁场的磁测量。磁化强度的温度依赖性表明，当温度降低时，复合样品显示出顺磁性到铁磁性的相变（PM-FM）。

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