Crystal structure and magnetic properties of 6H-perovskite Ba3NdRu2O9

被引:56
作者
Doi, Y [1 ]
Hinatsu, Y
Shimojo, Y
Ishii, Y
机构
[1] Hokkaido Univ, Div Chem, Grad Sch Sci, Sapporo, Hokkaido 0600810, Japan
[2] Japan Atom Energy Res Inst, Tokai, Ibaraki 3191195, Japan
关键词
D O I
10.1006/jssc.2001.9296
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Magnetic properties of a quaternary oxide Ba3NdRu2O9 are reported. This compound adopts the 6H-perovskite structure with space group P6(3)/mmc, in which the cation sites within the face-sharing octahedra are occupied by ruthenium ions and those within the corner-sharing octahedra are occupied by neodymium ions. Powder neutron diffraction, powder X-ray diffraction, magnetic susceptibility, magnetization, and specific heat measurements were carried out. It was found that the crystal phase transition and magnetic transition occurred at ca. 120 K and 24 K, respectively. The crystal structure below 120 K is monoclinic with space group C2/c. Neutron diffraction data collected at 10 K show that Ba3NdRu2O9 has a long-range ferromagnetic ordering of Nd3+ ions. The ordered magnetic moment of Nd3+ ions is 1.65(8) mu (B). The direction of ordered moments is parallel to the c-axis. (C) 2001 Academic Press.
引用
收藏
页码:113 / 120
页数:8
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