Spin and orbital moments in U 3 X 4 -type pnictides (X=P, As, Sb, Bi): Polarized neutron-diffraction study
Spin and orbital moments in U 3 X 4 -type pnictides (X=P, As, Sb, Bi): Polarized neutron-diffraction study
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U 3 X 4 型磷族元素（X=P、As、Sb、Bi）中的自旋和轨道矩：极化中子衍射研究
DOI：
10.1103/physrevb.60.6242
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发表时间：
1999
期刊：
影响因子：
--
通讯作者：
Z. Henkie
中科院分区：
文献类型：
--
作者：
P. Wiśniewski;A. Gukasov;Z. Henkie
极化中子实验已在U3 P4、U3 As 4、U3 Sb 4和U3 Bi 4单晶上进行.在偶极磁形状因子近似下，分离了铀原子磁矩的自旋和轨道分量，并与理论值进行了比较。这些组件的比例表明所有四种化合物的导带的5个f-电子状态的重要杂交。用这种方法估计的杂化对U3 Sb 4中的两个铀亚晶格有很大的不同.
Polarized neutron experiments have been performed on single crystals of U 3 P 4, U 3 As 4, U 3 Sb 4, and U 3 Bi 4. The spin and orbital components of the magnetic moments on the uranium atoms were separated within the dipole magnetic form factor approximation and compared to the theoretical values. The ratio of these components indicates an important hybridization of 5 f-electron states with the conduction band for all four compounds. The hybridization estimated in this way differs significantly for two uranium sublattices in U 3 Sb 4.