Magnetic properties of ErFeGa compounds with the 2 : 17-type structure
文献类型：期刊论文
| 作者 | Shen, BG ; Cheng, ZH ; Tang, H ; Liang, B ; Zhang, SY ; Wang, FW ; Zhan, WS ; de Boer, E ; Buschow, KHJ |
| 刊名 | SOLID STATE COMMUNICATIONS
 |
| 出版日期 | 1998 |
| 卷号 | 107期号:12页码:781 |
| 关键词 | MAGNETOCRYSTALLINE ANISOTROPY R(2)FE(17-X)GA(X) COMPOUNDS SUBSTITUTION MOSSBAUER |
| ISSN号 | 0038-1098 |
| 通讯作者 | Shen, BG: Chinese Acad Sci, Inst Phys, State Key Lab Magnetism, POB 603, Beijing 100080, Peoples R China. |
| 中文摘要 | An investigation of the structure and the magnetic anisotropy of Er2Fe17-xGax compounds has been performed by means of X-ray diffraction and magnetization measurements. X-ray diffraction shows the prepared compounds to be single phase, having the hexagonal Th2Ni17-type structure for x less than or equal to 3 and the rhombohedral Th2Zn17-type structure for x greater than or equal to 4. Substitution of Ga for Fe in Er2Fe17 leads to an increase of the unit-cell volume which is linear with the Ga content. The saturation magnetization at 1.5 K decreases linearly with increasing Ga concentration. The Curie temperature is found first to increase, then to decrease with increasing Ga concentration, having a maximum value of 526 K at about x = 3. The Er2Fe17-xGax compounds with x = 2, 3 and 4 exhibit a spin-reorientation transition with the spin-reorientation temperature being 136, 140 and 102 K, respectively. X-ray diffraction measurements on magnetically aligned Er2Fe17-xGax powders show that the compounds with x less than or equal to 7 have easy-plane type of magnetic anisotropy, whereas the compound with x = 8 exhibits easy-axis type of magnetic anisotropy at room temperature. The easy-magnetization direction of the sample of x = 8 is perpendicular to the c-axis at low temperature. Present result demonstrates that in Er2Fe17-xGax the substitution of high concentration of Ga leads to a change in the second-order crystal field parameter A(20) from negative to positive. (C) 1998 Elsevier Science Ltd. All rights reserved. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-18 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/41350]  |
| 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 | Shen, BG,Cheng, ZH,Tang, H,et al. Magnetic properties of ErFeGa compounds with the 2 : 17-type structure[J]. SOLID STATE COMMUNICATIONS,1998,107(12):781. |
| APA | Shen, BG.,Cheng, ZH.,Tang, H.,Liang, B.,Zhang, SY.,...&Buschow, KHJ.(1998).Magnetic properties of ErFeGa compounds with the 2 : 17-type structure.SOLID STATE COMMUNICATIONS,107(12),781. |
| MLA | Shen, BG,et al."Magnetic properties of ErFeGa compounds with the 2 : 17-type structure".SOLID STATE COMMUNICATIONS 107.12(1998):781. |
入库方式： OAI收割
来源：物理研究所
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