论文标题
YFE $ _ {0.5} $ CR $ _ {0.5} $ o $ $ _3 $ perovskite的可变温度调查Mössbauer光谱
Investigation of variable temperature Mössbauer spectrum of YFe$_{0.5}$Cr$_{0.5}$O$_3$ perovskite
论文作者
论文摘要
在本文中，我们报告了通过Sol-Gel方法的YFE $ _ {0.5} $ cr $ _ {0.5} $ o $ _3 $的准备，并研究了其结构，并在可变温度下进行了Mössbauer光谱。 X射线衍射（XRD）分析表明，样品具有与PNMA空间组的正交结构，并且能量色散光谱法（EDS）分析表明，样品的样品具有Fe/Cr = 1：1，表明样品是Fe Half fe Half pofed fe ycro $ _3 $。 Mössbauer光谱在室温下的高精细参数证实，样品中57FE的特征是三价的六链球式高旋转（s = 5/2），DoubleT和DoubleT的同性恋和250K的SEXTETs性表明样品样品具有超帕磁性弛豫。 Mössbauer光谱记录了250K-300K温度范围内的磁相变。
In this paper, we reported the preparation of YFe$_{0.5}$Cr$_{0.5}$O$_3$ by the sol-gel method and studied its structure and Mössbauer spectrum at variable temperatures. X-ray diffraction(XRD) analysis exhibits that the sample has the orthorhombic structure with the Pnma space group, and the energy dispersive spectroscopy (EDS) analysis shows that the sample has Fe/Cr = 1:1, indicating that the sample is Fe half-doped YCrO$_3$. The hyperfine parameters of the Mössbauer spectrum at room temperature confirm that the characteristics of 57Fe in the sample were trivalent hexacoordinated high-spin(s=5/2), and the coexistence of doublet and the sextets at 250K indicate that the sample has superparamagnetic relaxation. The Mössbauer spectrum records the magnetic phase transition in the temperature range of 250K-300K.
