The crystal and magnetic structures of Ca2YRuO6 and the electronic properties of the series M2+2X3+Ru5+O6 (M = Ca, Sr, Ba; X = La, Y)
The crystal and magnetic structures of Ca2YRuO6 and the electronic properties of the series M2+2X3+Ru5+O6 (M = Ca, Sr, Ba; X = La, Y)
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Ca2YRuO6 的晶体和磁性结构以及 M2 2X3 Ru5 O6 系列的电子性质（M = Ca、Sr、Ba；X = La、Y）
DOI：
10.1016/0022-4596(84)90152-x
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发表时间：
1984
影响因子：
3.3
通讯作者：
W. J. Macklin
中科院分区：
文献类型：
--
作者：
P. Battle;W. J. Macklin
利用恒定波长粉末中子衍射数据的轮廓分析来细化有序钙钛矿Ca 2 YRuO 6 的晶体结构。该材料是单斜晶系（空间群P2 1 n），在A位和一个B位上钙和钇无序排列，因此该公式最好写为Ca 1.43 Y 0.57 [(Ca 0.57 Y 0.43) Ru] O 6 。低温中子衍射实验表明，该材料在2.5 K下为I型反铁磁体，有序磁矩为每Ru 5+ 1.2 (1) μ B。表明决定系列M 2+ 2 X 3+ Ru 5+ O 6 (M=Ca,Sr,Ba;X=La,Y)电子性质的主导因素是Ru-Ru间距。
Profile analysis of constant-wavelength powder neutron diffraction data has been used to refine the crystal structure of the ordered perovskite Ca 2 YRuO 6. The material is monoclinic (space group P2 1 n) with a disordered arrangement of calcium and yttrium on the A site and one of the B sites, such that the formula is best written as Ca 1.43 Y 0.57 [(Ca 0.57 Y 0.43) Ru] O 6. Low-temperature neutron diffraction experiments showed that the material is a Type I antiferromagnet at 2.5 K with an ordered magnetic moment of 1.2 (1) μ B per Ru 5+. It is suggested that the dominant factor in determining the electronic properties of the series M 2+ 2 X 3+ Ru 5+ O 6 (M= Ca, Sr, Ba; X= La, Y) is the Ru-Ru separation distance.