Effects of Fe substitution on structural and magnetic properties of the Nd2Co7-xFex compounds
文献类型：期刊论文
| 作者 | Yang, YQ ; Rao, GH ; Wang, T ; Li, JB ; Luo, J ; Liu, GY ; Chen, XJ ; Zhao, JL |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2010 |
| 卷号 | 506期号:2页码:766 |
| 关键词 | EARTH-COBALT COMPOUNDS INTERMETALLIC COMPOUNDS ANISOTROPY ALLOYS IRON CRYSTALLINE TRANSITION FIELD |
| ISSN号 | 0925-8388 |
| 通讯作者 | Rao, GH: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | The structural and magnetic properties of the Nd2Co7-xFex compounds related to Rm+nT2m+5n series (R = rare earth, T = transition metal) were investigated by means of X-ray diffraction and magnetic measurements. The compounds crystallize in the Ce2Ni7-type structure with the space group P6(3)/mmc between x = 0.0 and 2.1. For higher Fe content the Nd-2(CoFe)(7) either coexists with the Nd(CoFe)(3) phase (x > 2.1) or decomposes to Nd(CoFe)(3) + Nd-2(CoFe)(17) (x > 2.4). The single phase Nd2Co7-xFe2 compounds exhibit two spin-reorientation transitions (SRT) for x < 1.5. The substitution of Fe for Co elevates both the spin-reorientation transition temperatures for x < 1.5 and finally leads to a single ferromagnetism to paramagnetism transition for x > 1.5. A magnetic phase diagram is constructed based on the magnetic measurements, thermogravimetry analysis under a low magnetic field and X-ray diffraction of magnetically aligned samples. The saturation magnetization of the compounds increases gradually first with the Fe content for x < 0.20, substantially for 0.20 < x < 1.5, and then decreases for x > 1.5, which can be elucidated by a depletion effect of d band electrons due to the substitution of Fe for Co and the spin-flipping due to an enhanced d band splitting. (C) 2010 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [50631040]; National Basic Research Program of China [2006CB601101, 2006CB605101] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/36708]  |
| 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 | Yang, YQ,Rao, GH,Wang, T,et al. Effects of Fe substitution on structural and magnetic properties of the Nd2Co7-xFex compounds[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2010,506(2):766. |
| APA | Yang, YQ.,Rao, GH.,Wang, T.,Li, JB.,Luo, J.,...&Zhao, JL.(2010).Effects of Fe substitution on structural and magnetic properties of the Nd2Co7-xFex compounds.JOURNAL OF ALLOYS AND COMPOUNDS,506(2),766. |
| MLA | Yang, YQ,et al."Effects of Fe substitution on structural and magnetic properties of the Nd2Co7-xFex compounds".JOURNAL OF ALLOYS AND COMPOUNDS 506.2(2010):766. |
入库方式： OAI收割
来源：物理研究所
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