Resonant X-Ray Scattering on theM-Edge Spectra from Triple-kStructure Phase in U0.75Np0.25O2and UO2
Resonant X-Ray Scattering on theM-Edge Spectra from Triple-kStructure Phase in U0.75Np0.25O2and UO2
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U0.75Np0.25O2和UO2中三k结构相M边光谱的共振X射线散射
DOI：
10.1143/jpsjs.75s.247
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发表时间：
2006
影响因子：
1.7
通讯作者：
J. Igarashi
中科院分区：
文献类型：
--
作者：
T. Nagao;J. Igarashi
在描述中间态的哈密顿量保持球对称的假设下，我们导出了共振x射线散射的散射振幅的表达式。在此基础上，我们证明了UO 2和U0.75Np0.25O2中三k反铁磁有序相在U和NpM 4边附近的RXS谱的能量分布与实验结果符合得很好.我们证明了σ-σ'和σ-π'通道的谱分别具有四极和偶极性质。
We derive an expression for the scattering amplitude of resonant x-ray scattering under the assumption that the Hamiltonian describing the intermediate state preserves spherical symmetry. On the basis of this expression, we demonstrate that the energy profile of the RXS spectra expected near U and Np M 4 edges from the triple- k antiferromagnetic ordering phase in UO 2 and U 0.75 Np 0.25 O 2 agree well with those from the experiments. We demonstrate that the spectra in the σ–σ' and σ–π' channels exhibit quadrupole and dipole natures, respectively.
NpO2 中三 q 多极结构的 NMR 证据。
影响因子：
8.6
作者：
Y. Tokunaga;Y. Homma;S. Kambe;D. Aoki;H. Sakai;E. Yamamoto;A. Nakamura;Y. Shiokawa;Y. Shiokawa;R. Walstedt;H. Yasuoka
通讯作者：
H. Yasuoka