Selective substitution of vanadium for molybdenum in Sr-2(Fe-1-V-x(x))MoO6 double perovskites
文献类型：期刊论文
| 作者 | Zhang, Q ; Rao, GH ; Huang, Q ; Feng, XM ; Ouyang, ZW ; Liu, GY ; Toby, BH ; Liang, JK |
| 刊名 | JOURNAL OF SOLID STATE CHEMISTRY
 |
| 出版日期 | 2006 |
| 卷号 | 179期号:8页码:2458 |
| 关键词 | NEUTRON POWDER DIFFRACTION MAGNETIC-PROPERTIES SR2FEMOO6 MAGNETORESISTANCE TRANSPORT SIMULATION DISORDER SITE FE |
| ISSN号 | 0022-4596 |
| 通讯作者 | Rao, GH (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | The crystal and magnetic structures of Sr-2(Fe1-xVx)MoO6 (0.03 <= x <= 0.1) compounds are refined by alternately using X-ray powder diffraction (XRD) and neutron powder diffraction (NPD) data collected at room temperature. The refinement results reveal that the V atoms selectively occupy the Mo sites instead of the Fe sites for x <= 0.1. The 3d/4d cation ordering decreases with the increase of the V content. Slight distortions in the lattice and metal octahedra are shown at 300K, and the distortions increase at 4K. The magnetic structure at 4 K can be modeled equally well with the moments aligning along [001], [110] or [111] directions. The total moments derived from the NPD data for the [110] and [111] direction models agree well with the magnetic measurements, whereas the [001] model leads to a smaller total moment. Bond valence analysis indicates that Sr ions are properly located in the structure and Mo ions are compatible with both the Fe sites and the Mo sites. The electronic effects are suggested to be responsible for the selective occupation of the V on the Mo sites due to the different distortions of the FeO6 and MoO6 octahedra. (c) 2006 Elsevier Inc. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52388]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang, Q,Rao, GH,Huang, Q,et al. Selective substitution of vanadium for molybdenum in Sr-2(Fe-1-V-x(x))MoO6 double perovskites[J]. JOURNAL OF SOLID STATE CHEMISTRY,2006,179(8):2458. |
| APA | Zhang, Q.,Rao, GH.,Huang, Q.,Feng, XM.,Ouyang, ZW.,...&Liang, JK.(2006).Selective substitution of vanadium for molybdenum in Sr-2(Fe-1-V-x(x))MoO6 double perovskites.JOURNAL OF SOLID STATE CHEMISTRY,179(8),2458. |
| MLA | Zhang, Q,et al."Selective substitution of vanadium for molybdenum in Sr-2(Fe-1-V-x(x))MoO6 double perovskites".JOURNAL OF SOLID STATE CHEMISTRY 179.8(2006):2458. |
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来源：物理研究所
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