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首页> 外文期刊>Journal of Solid State Chemistry >Structures and magnetic properties of rare earth double perovskites containing antimony or bismuth Ba(2)LnMO(6) (Ln=rare earths; M=Sb, Bi)
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Structures and magnetic properties of rare earth double perovskites containing antimony or bismuth Ba(2)LnMO(6) (Ln=rare earths; M=Sb, Bi)

机译:包含锑或铋Ba(2)LnMO(6)(Ln =稀土; M = Sb,Bi)的稀土双钙钛矿的结构和磁性

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摘要

A series of double perovskite-type oxides Ba(2)LnMO(6) (Ln=lanthanides; M=Sb, Bi) were synthesized and their structures were studied. The Ln and M are structurally ordered in the rock-salt type at the B-site of the perovskite ABO(3). For Ba2PrBiO6 and Ba2TbBiO6, it has been found that the disordering between Ln ion and Bi ion occurs at the B-site of the double perovskite and both the Pr (Tb) and Bi exist in two oxidation state in the same compound from the analysis of the X-ray diffraction and magnetic susceptibility data. Magnetic susceptibility measurements show that all these compounds are paramagnetic and have no magnetic ordering down to 1.8 K. (C) 2015 Elsevier Inc. All rights reserved.
机译:合成了一系列的双重钙钛矿型氧化物Ba(2)LnMO(6)(Ln =镧系元素; M = Sb,Bi),并对其结构进行了研究。 Ln和M在钙钛矿ABO(3)的B位置以岩盐型结构排列。对Ba2PrBiO6和Ba2TbBiO6而言,发现Ln离子和Bi离子之间的无序发生在双钙钛矿的B位,并且Pr(Tb)和Bi都在同一化合物中以两种氧化态存在。 X射线衍射和磁化率数据。磁化率测量表明,所有这些化合物都是顺磁性的,并且在低至1.8 K时没有磁性顺序。(C)2015 Elsevier Inc.保留所有权利。

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