Influence of interstitial and substitutional atoms on the crystal structure of La(FeSi)(13)
文献类型：期刊论文
| 作者 | Jia, L ; Sun, JR ; Shen, J ; Gao, B ; Zhao, TY ; Zhang, HW ; Hu, FX ; Shen, BG |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2011 |
| 卷号 | 509期号:19页码:5804 |
| 关键词 | MAGNETIC ENTROPY CHANGE ELECTRON METAMAGNETIC TRANSITION INTERMETALLIC COMPOUNDS COMPOUND LAFE11.4SI1.6 NEUTRON-DIFFRACTION ROOM-TEMPERATURE LA(FE0.88SI0.12)(13) REFRIGERANTS EXPANSION |
| ISSN号 | 0925-8388 |
| 通讯作者 | Sun, JR: Chinese Acad Sci, State Key Lab Magnetism, Inst Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | The influence of interstitial hydrogen or carbon on the crystal structure of LaFe11.5Si1.5H delta (delta=0, 1.2, and 2) and LaFe11.5Si1.5C delta (delta=0, 0.1, 0.2, 0.3, 0.4, and 0.5) has been investigated based on the Rietveld analyses of powder X-ray diffraction spectra. Effects of Ce substitution for La are also studied for comparison. The incorporation of interstitial atoms causes a lattice expansion of the compounds while leaves the structural symmetry unchanged. Accompanying the lattice expansion, Fe-Fe bond exhibits a concomitant variation. Four of the five Fe-Fe bonds show a tendency to expansion. The largest elongation occurs for the shortest inter-cluster bond, and the relative change is as large as similar to 2.53% as delta increases from 0 to 2 for LaFe11.5Si1.5H delta. In contrast, the longest Fe-Fe bond shrinks considerably (-0.97%). Similarly effects on Fe-Fe bonds are produced by the paramagnetic to ferromagnetic transition, though the bond variation is smaller. Increase in Ce content produces, fascinatingly, essentially the same effects as the decrease of interstitial content, though Ce occupies different crystallographic sites than those occupied by interstitial atoms. Influence of interstitial atoms on magnetic behaviors may be dominated by the change of the shortest Fe-Fe bond. (C) 2011 Elsevier B. V. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China; National Basic Research of China |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39833]  |
| 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 | Jia, L,Sun, JR,Shen, J,et al. Influence of interstitial and substitutional atoms on the crystal structure of La(FeSi)(13)[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2011,509(19):5804. |
| APA | Jia, L.,Sun, JR.,Shen, J.,Gao, B.,Zhao, TY.,...&Shen, BG.(2011).Influence of interstitial and substitutional atoms on the crystal structure of La(FeSi)(13).JOURNAL OF ALLOYS AND COMPOUNDS,509(19),5804. |
| MLA | Jia, L,et al."Influence of interstitial and substitutional atoms on the crystal structure of La(FeSi)(13)".JOURNAL OF ALLOYS AND COMPOUNDS 509.19(2011):5804. |
入库方式： OAI收割
来源：物理研究所
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