Improved magnetic properties and structural characterizations in Mn doped 0.9BiFeO3–0.1BaTiO3 compositions
Improved magnetic properties and structural characterizations in Mn doped 0.9BiFeO3–0.1BaTiO3 compositions
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DOI：
10.1016/j.scriptamat.2016.11.034
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发表时间：
2017-03
影响因子：
6
通讯作者：
R. Gotardo;E.F. Silva;D. Montanher;G. M. Santos;K. L. Silva;L. Cotica;I. A. Santos;R. Guo;A. Bhalla
中科院分区：
文献类型：
--
作者：
R. Gotardo;E.F. Silva;D. Montanher;G. M. Santos;K. L. Silva;L. Cotica;I. A. Santos;R. Guo;A. Bhalla
报道了Mn掺杂0.9BiFeO3- 0.1BaTiO3化合物的结构相关磁化增强。X射线衍射和Rietveld精修研究揭示了菱面体和单斜对称共存的扭曲的钙钛矿结构。穆斯堡尔谱结果表明，有序的Fe 3+离子的磁谱特征的菱形相的未掺杂的样品，和菱形和单斜相的Mn掺杂的样品。一个显着的磁化强度增加（达到0.50 emu/g），与thCm相的磁有序和Mn 3+价态的保留，观察到Mn掺杂样品。
A structurally correlated magnetization enhancement is reported for Mn doped 0.9BiFeO3–0.1BaTiO3compounds. X-ray diffraction and Rietveld refinement studies revealed a distorted perovskite structure with the coexistence of rhombohedral and monoclinic symmetries. Mössbauer spectroscopy results showed a magnetic spectral signature of ordered Fe3 +ions for the rhombohedral phase of the undoped sample, and for both rhombohedral and monoclinic phases of the Mn doped samples. A significant magnetization increase (reaching 0.50 emu/g), associated to the magnetic ordering of theCmphase and to the retention of the Mn3 +valence state, was observed for Mn doped samples.