Structure and unusual magnetic properties in the itinerant electron system Hf0.8Ta0.2(Fe1-xCOx)(2)
文献类型：期刊论文
| 作者 | Z. W. Ouyang ; G. H. Rao ; H. F. Yang ; W. F. Liu ; G. Y. Liu ; X. M. Feng ; J. K. Liang |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2004 |
| 卷号 | 370期号:1-2页码:18-24 |
| 关键词 | itinerant electron system Laves phase Hf0.8Ta0.2Fe2 transport-properties ferromagnetic transition laves phases hf1-xtaxfe2 alloys hf |
| ISSN号 | 0925-8388 |
| 中文摘要 | The crystal structure and magnetization of Hf0.8Ta0.2(Fe1-xCOx)(2) are investigated by X-ray powder diffraction and magnetization measurements. The compounds exhibit the Laves C14 structure for x = 0.0-0.2 and the C15 structure for x greater than or equal to 0.3. The structural transition from C14 to C15 leads to an anomaly of the unit cell volume between x = 0.2 and 0.3. When x = 0.0, the compound undergoes a magnetic phase transition from ferromagnetic to paramagnetic state via the antiferromagnetic state, in which a field-induced metamagnetic transition is observed. When x = 0.1 and 0.2, the compounds exhibit unusually small saturation moments, which are considered as antiferromagnetism (with weak ferromagnetic impurities) and weak ferromagnetism or ferrimagnetism, respectively. The formation of the AFM state is associated with a small bond length of Fe atom in the 6h site. When x greater than or equal to 0.3, the compounds exhibit a ferromagnetic to paramagnetic transition, which can be explained by itinerant electron metamagnetism. (C) 2003 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/35507]  |
| 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 | Z. W. Ouyang,G. H. Rao,H. F. Yang,et al. Structure and unusual magnetic properties in the itinerant electron system Hf0.8Ta0.2(Fe1-xCOx)(2)[J]. Journal of Alloys and Compounds,2004,370(1-2):18-24. |
| APA | Z. W. Ouyang.,G. H. Rao.,H. F. Yang.,W. F. Liu.,G. Y. Liu.,...&J. K. Liang.(2004).Structure and unusual magnetic properties in the itinerant electron system Hf0.8Ta0.2(Fe1-xCOx)(2).Journal of Alloys and Compounds,370(1-2),18-24. |
| MLA | Z. W. Ouyang,et al."Structure and unusual magnetic properties in the itinerant electron system Hf0.8Ta0.2(Fe1-xCOx)(2)".Journal of Alloys and Compounds 370.1-2(2004):18-24. |
入库方式： OAI收割
来源：金属研究所
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