GdFe_(0.5)Mn_(0.5)O_3的水热合成及磁电性能的研究

Hydrothermal Synthesis and Characterization of GdFe_(0.5)Mn_(0.5)O_3

采用温和的水热方法合成了GdFe0.5Mn0.5O3多铁材料,通过XRD谱图分析该化合物的结晶度非常好。磁性研究发现在25 K左右出现了顺磁-反铁磁的转变,并且在4 K和300 K时都具有磁滞回线,说明该化合物室温具有铁磁性。铁电数据显示其自发极化和电滞回线在高于居里温度附近仍然存在,这也进一步证明了此材料具有良好的室温铁电性。为此合成的该化合物GdFe0.5Mn0.5O3是一个非常有研究价值和应用前景的多铁材料。

By mild hydrothermal synthesis GdFe0.5Mn0.5O3 multiferroic materials, by analyzing the comprise and magnetic characteristic, it is better than other samples of synthesis with high crystallinity. The magnetic properties of paramagnetic and anti-ferromagnetic transition in the 25 K or so, hysteriesis loop is in the 4 K and 300 K, indicating that the compound at room temperature ferromagnetic. Ferroelectric data display, it still exists above the Curie temperature near the spontaneous polarization and ferroelectric hysteresis loops. Which also futher proved that this material has good room temperature ferroelectricity. Therefore, the compound for the synthesis of GdFe0.5Cr（Mn）0.5O3 is a very multiferroic materials of research value and application prospect.