Symmetry role on the preedge X-ray absorption fine structure at the metal K edge
文献类型：期刊论文
| 作者 | Wu ZY(吴自玉) ; Wu, ZY; Natoli, CR; Marcelli, A; Paris, E; Seifert, F; Zhang, J; Liu, T; Zhang J(张静); Liu T(刘涛)
|
| 刊名 | JOURNAL OF SYNCHROTRON RADIATION
 |
| 出版日期 | 2001 |
| 卷号 | 8期号:2页码:#REF! |
| 关键词 | XANES symmetry electronic properties |
| 通讯作者 | Wu, ZY (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, POB 918, Beijing 100039, Peoples R China. |
| 英文摘要 | The preedge features in a system with "even" symmetry, apart from quadrupolar transition contribution, are mainly dipolar in character, associated with the existence of unoccupied states made up of mixed cation-4p with higher-neighboring cation-3d orbitals, and reflect the density of states due to the medium-range order of the system. In "odd" symmetry materials these preedge features are the result of a transition from the 1s to a final density of states of p symmetry due to an unsymmetrical mixing of the ligand wave functions with the central cation 3d orbitals, similar to atetrahedral configuration. These results are validated for Fe as a photoabsorber by comparing XAS spectra of Fe2SiO4 (fayalite) to ab initio full multiple scattering calculations at the Fe K edge, but pertain to all systems containing sixfold-coordinated cations. |
| 学科主题 | Instruments & Instrumentation; Optics; Physics |
| 类目[WOS] | Instruments & Instrumentation ; Optics ; Physics, Applied |
| 收录类别 | SCI |
| WOS记录号 | WOS:000167298100038 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/226998]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 推荐引用方式 GB/T 7714 | Wu ZY,Wu, ZY,Natoli, CR,et al. Symmetry role on the preedge X-ray absorption fine structure at the metal K edge[J]. JOURNAL OF SYNCHROTRON RADIATION,2001,8(2):#REF!. |
| APA | 吴自玉.,Wu, ZY.,Natoli, CR.,Marcelli, A.,Paris, E.,...&刘涛.(2001).Symmetry role on the preedge X-ray absorption fine structure at the metal K edge.JOURNAL OF SYNCHROTRON RADIATION,8(2),#REF!. |
| MLA | 吴自玉,et al."Symmetry role on the preedge X-ray absorption fine structure at the metal K edge".JOURNAL OF SYNCHROTRON RADIATION 8.2(2001):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。