Neutron diffraction study of magnetic ordering in K2IrCl6, K2ReBr6 and K2ReCl6
Neutron diffraction study of magnetic ordering in K2IrCl6, K2ReBr6 and K2ReCl6
复制标题
K2IrCl6、K2ReBr6 和 K2ReCl6 磁有序的中子衍射研究
DOI：
10.1016/0022-3697(68)90222-9
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发表时间：
1968
影响因子：
4
通讯作者：
P. B. Dorain
中科院分区：
文献类型：
--
作者：
V. Minkiewicz;G. Shirane;B. Frazer;R. G. Wheeler;P. B. Dorain
在低于其尼尔温度的 K2ReBr6(Tn= 15.3°K) 上进行的粉末中子衍射测量表明，该化合物具有 1 型有序。 K2IrCl6 的实验结果与 Hutchings 和 Windsor 获得的结果一致，他们最近提出该化合物具有 3A 型有序方案。对 K2ReCl6 进行的详细单晶散射实验得出了 Re+4 离子的磁散射振幅，该振幅与 dϵ3 电子配置的预期一致。与Smith和Bacon的结果一致，使用自旋轴沿着垂直于堆叠轴的平面中的立方轴的1型磁结构来获得磁形状因数。
Powder neutron diffraction measurements on K2ReBr6(Tn= 15.3°K) below its Néel temperature have established that this compound possesses type 1 order. The results of the experiment on K2IrCl6are in agreement with those obtained by Hutchings and Windsor, who recently proposed that this compound has the type 3Aordering scheme. A detailed single crystal scattering experiment on K2ReCl6has yielded a magnetic scattering amplitude for the Re+4ion that is consistent with what one would expect from a dϵ3electronic configuration. The type 1 magnetic structure with the spin axis along a cubic axis in the plane perpendicular to the stacking axis, in agreement with the results of Smith and Bacon, has been used to obtain the magnetic form factor.