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以KCl为熔剂,通过环境友好的熔融盐法在相对较低的反应温度下合成了系列组成可调变的化合物Bi0.5Ca0.25La0.25FexMn1-xO3(x =0.3,0.4,0.5),同时借助于XRD、ICP元素分析和磁强计对样品进行表征.XRD表征结果显示所有样品都具有钙钛矿型正交结构,属于pbnm空间群;元素分析结果证实熔融盐合成得到的样品其组成符合最初反应物的投料比;磁性表征结果显示低铁含量样品(x=0.3)低温区存在典型Hopkinson效应,样品随Fe含量的增加,该效应减弱,同时样品的反铁磁性逐渐增强.

参考文献

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