标题：Structural transition and magnetic properties of (Sr2-3xLa2xBax)FeMoO6
作者：Xu, Zhen Feng ;Liang, Jun ;Pei, Juan ;Yin, Yan Yan ;Li, Chang
通讯作者：Xu, Z F
作者机构：[Xu, Zhen Feng ;Liang, Jun ;Pei, Juan ;Yin, Yan Yan ;Li, Chang ] Academic Devision of Shandong Jiaotong University, Jinan 250023, China;[Xu, Zhen Feng 更多
来源：Materials Science Forum
摘要：Ordered double perovskite oxides (Sr2-3xLa2xBax)FeMoO6(0≤x≤0.3) have been investigated in this work. X-ray powder diffraction reveals that the crystal structure of the compounds changes from a tetragonal I4/m lattice to a cubic Fm 3 m lattice around x=0.2. Though the nominal average size of the A site cation of (Sr2-3xLa2xBax)FeMoO6is designed to be almost independent of x, the refinements of the crystal structure show that the lattice constants increase with x in both the tetragonal and the cubic phase regions due to electron doping. As the x increases, the degree of cationic ordering on the B site is decreased pronouncedly, while the Curie temperature of the compounds is nearly unchanged. © (2011) Trans Tech Publications.