Local structural disorder in REFeAsO oxypnictides by RE L-3 edge XANES
文献类型：期刊论文
| 作者 | Xu W(徐伟) ; Chu WS(储旺盛); Wu ZY(吴自玉); Xu, W; Marcelli, A; Joseph, B; Iadecola, A; Chu, WS; Di Gioacchino, D; Bianconi, A
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| 刊名 | JOURNAL OF PHYSICS-CONDENSED MATTER
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| 出版日期 | 2010 |
| 卷号 | 22期号:12页码:125701 |
| 通讯作者 | [Xu, W. ; Chu, W. S. ; Wu, Z. Y.] Chinese Acad Sci, Inst High Energy Phys, BSRF, Beijing 10049, Peoples R China ; [Marcelli, A. ; Di Gioacchino, D.] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy ; [Joseph, B. ; Iadecola, A. ; Bianconi, A. ; Saini, N. L.] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy ; [Wu, Z. Y.] Univ Sci & Technol China, NSRL, Hefei 230026, Peoples R China |
| 英文摘要 | The REFeAsO (RE = La, Pr, Nd and Sm) system has been studied by RE L-3 x-ray absorption near edge structure (XANES) spectroscopy to explore the contribution of the REO spacers between the electronically active FeAs slabs in these materials. The XANES spectra have been simulated by full multiple scattering calculations to describe the different experimental features and their evolution with the RE size. The near edge feature just above the L-3 white line is found to be sensitive to the ordering/disordering of oxygen atoms in the REO layers. In addition, shape resonance peaks due to As and O scattering change systematically, indicating local structural changes in the FeAs slabs and the REO spacers due to RE size. The results suggest that interlayer coupling and oxygen order/disorder in the REO spacers may have an important role in the superconductivity and itinerant magnetism of the oxypnictides. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Condensed Matter |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000275496600012 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/240993]  |
| 专题 | 高能物理研究所_多学科研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Xu W,Chu WS,Wu ZY,et al. Local structural disorder in REFeAsO oxypnictides by RE L-3 edge XANES[J]. JOURNAL OF PHYSICS-CONDENSED MATTER,2010,22(12):125701. |
| APA | 徐伟.,储旺盛.,吴自玉.,Xu, W.,Marcelli, A.,...&Saini, NL.(2010).Local structural disorder in REFeAsO oxypnictides by RE L-3 edge XANES.JOURNAL OF PHYSICS-CONDENSED MATTER,22(12),125701. |
| MLA | 徐伟,et al."Local structural disorder in REFeAsO oxypnictides by RE L-3 edge XANES".JOURNAL OF PHYSICS-CONDENSED MATTER 22.12(2010):125701. |
入库方式： OAI收割
来源：高能物理研究所
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