Effects of the doping element on crystal structure and magnetic properties of Sm(CO,M)(7) compounds (M = Si, Cu, Ti, Zr, and Hf)
文献类型：期刊论文
| 作者 | J. Luo ; J. K. Liang ; Y. Q. Guo ; Q. L. Liu ; F. S. Liu ; Y. Zhang ; L. T. Yang ; G. H. Rao |
| 刊名 | Intermetallics
 |
| 出版日期 | 2005 |
| 卷号 | 13期号:7页码:710-716 |
| 关键词 | rare-earth intermetallics magnetic properties phase stability prediction diffraction permanent-magnets intrinsic-coercivity alloys substitution nd sm anisotropy x=0-0.8 heat base |
| ISSN号 | 0966-9795 |
| 中文摘要 | The crystal structure and magnetic properties of Sm(CO,M)(7) (M = Si, Cu, Ti, Zr, and Hf) compounds with the TbCu7-type structure have been investigated by means of X-ray powder diffraction and magnetic measurements. For the Sm(Co,M)(7) compounds, the formation of the compound is dominated by the enthalpy of formation of Mco(7), atomic radius ratio of Sm to (Co, M) and the electronic configuration of the doping element M, while the site occupation of M is determined by the enthalpies of solution of M in liquid Sm and Co as well as by the electronegativity difference among M, Sm and Co. However, the Sm(Co,Cu)(7) compounds exhibit different stabilizing mechanism, which may be due to the large mutual solubility between Co and Cu in the Sm(Co,Cu)(7). The stabilizing element Si and Cu prefer to occupy the 3g site, whereas Ti, Zr and Hf have preference to occupy the 2e site. Both the saturation magnetization and Curie temperature of the Sm(Co,M)(7) compounds decrease with increasing M content, while the magnetic anisotropy increases with increasing M content. The magnetic anisotropy field is related closely to the content and site occupation of the doping element M, which agrees with the theoretical analysis based on the individual site contribution model. (c) 2004 Published by Elsevier Ltd. |
| 原文出处 | |
| 公开日期 | 2012-05-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/40025]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | J. Luo,J. K. Liang,Y. Q. Guo,et al. Effects of the doping element on crystal structure and magnetic properties of Sm(CO,M)(7) compounds (M = Si, Cu, Ti, Zr, and Hf)[J]. Intermetallics,2005,13(7):710-716. |
| APA | J. Luo.,J. K. Liang.,Y. Q. Guo.,Q. L. Liu.,F. S. Liu.,...&G. H. Rao.(2005).Effects of the doping element on crystal structure and magnetic properties of Sm(CO,M)(7) compounds (M = Si, Cu, Ti, Zr, and Hf).Intermetallics,13(7),710-716. |
| MLA | J. Luo,et al."Effects of the doping element on crystal structure and magnetic properties of Sm(CO,M)(7) compounds (M = Si, Cu, Ti, Zr, and Hf)".Intermetallics 13.7(2005):710-716. |
入库方式： OAI收割
来源：金属研究所
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