Structure and magnetic properties of Er3Fe29-xNbx
文献类型：期刊论文
| 作者 | Jia, L ; Luo, HZ ; Shen, J ; Wu, GH ; Yang, FM ; Chen, NX |
| 刊名 | JOURNAL OF PHYSICS D-APPLIED PHYSICS
 |
| 出版日期 | 2005 |
| 卷号 | 38期号:5页码:667 |
| 关键词 | R2CO17 COMPOUNDS ANISOTROPY GD SM DY ND COMPOUND PHASE PR TB |
| ISSN号 | 0022-3727 |
| 通讯作者 | Jia, L (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China. |
| 中文摘要 | A series of Er3Fe29-xNbx compounds (0 <= x <= 1.5) has been synthesized. It is found that although the nominal composition is 3: 29, the compounds crystallize in either the disordered or the ordered Th2Ni17-type structure (space group P6(3)/mmc), except for small amounts of alpha-Fe and ThMn12 (1 : 12) phases as secondary phases, depending on the annealing temperature and Nb content. A tentative phase diagram has been constructed for the Er-Fe-Nb system. Single-phased Er3Fe29-xNbx compounds with the disordered Th2Ni17 structure were obtained at annealing temperatures in the range of 1423-1473 K for x = 0.5-1.2. The structure and magnetic properties of the Er3Fe29-xNbx compounds with the disordered Th2Ni17 structure have been investigated by means of x-ray diffraction and magnetic measurements. It is found that the lattice constants a, c and the unit-cell volume V increase with Nb content. As the Nb content increases the Curie temperature increases and the saturation magnetization M-S decreases. All the compounds have the easy-plane type of anisotropy at room temperature. The temperature dependence of the ac susceptibility shows an anomaly at around 155 K, which may be associated with the temperature-induced domain-wall movement under excitation of the external ac field. The magnetization curves indicate the appearance of a first-order magnetization process (FOMP) and the critical field B-cr of FOMP decreases with increasing Nb content from 5.0 T for x = 0-2.9 T for x = 1.2. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/53450]  |
| 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,Luo, HZ,Shen, J,et al. Structure and magnetic properties of Er3Fe29-xNbx[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2005,38(5):667. |
| APA | Jia, L,Luo, HZ,Shen, J,Wu, GH,Yang, FM,&Chen, NX.(2005).Structure and magnetic properties of Er3Fe29-xNbx.JOURNAL OF PHYSICS D-APPLIED PHYSICS,38(5),667. |
| MLA | Jia, L,et al."Structure and magnetic properties of Er3Fe29-xNbx".JOURNAL OF PHYSICS D-APPLIED PHYSICS 38.5(2005):667. |
入库方式： OAI收割
来源：物理研究所
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