Magnetic Compton scattering study of CeRh3B2
Magnetic Compton scattering study of CeRh3B2
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CeRh3B2 的磁康普顿散射研究
DOI：
10.1088/0953-8984/15/28/348
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发表时间：
2003
期刊：
影响因子：
--
通讯作者：
Y. Ōnuki
中科院分区：
文献类型：
--
作者：
Y. Sakurai;M. Itou;J. Tamura;S. Nanao;A. Thamizhavel;Y. Inada;A. Galatanu;E. Yamamoto;Y. Ōnuki
铁磁 CeRh3B2 的自旋极化电子动量分布（磁康普顿分布：MCP）已使用磁康普顿散射技术在 10 K 下测量 [110] 方向。在这种化合物中，轨道矩主导磁化强度。 MCP 的分析表明，Ce 4f 和 Ce 5d 自旋矩分别平行排列，值分别为 -0.68 ± 0.08 和 0.41 ± 0.04μB，而 Rh 4d 电子不携带任何显着的自旋矩。 Ce 4f 电子的轨道与自旋矩之比是通过当前数据与最近的偏振中子衍射数据的比较确定的，比 Ce3+ 离子的轨道与自旋矩之比要小得多。这一结果意味着 Ce 4f 轨道与周围离子轨道的强杂化。
The spin-polarized electron momentum distribution (magnetic Compton profile: MCP) of ferromagnetic CeRh3B2 has been measured using the magnetic Compton scattering technique at 10 K for the [110] direction. In this compound, the orbital moment dominates the magnetization. An analysis of the MCP reveals that the Ce 4f and Ce 5d spin moments are aligned parallel with a value of −0.68 ± 0.08 and 0.41 ± 0.04μB, respectively, while Rh 4d electrons do not carry any significant spin moment. The ratio of orbital to spin moments for Ce 4f electrons, which has been determined from comparison of the present data with recent polarized neutron diffraction data, is rather smaller than that for Ce3+ ions. This result implies strong hybridization of the Ce 4f orbital with the orbitals on the surrounding ions.