| Structure and unusual magnetic properties in the itinerant electron system Hf0.8Ta0.2(Fe1-xCOx)(2) | |
| Z. W. Ouyang; G. H. Rao; H. F. Yang; W. F. Liu; G. Y. Liu; X. M. Feng; J. K. Liang | |
| 2004 | |
| Source Publication | Journal of Alloys and Compounds
 |
| ISSN | 0925-8388 |
| Volume | 370Issue:1-2Pages:18-24 |
| Abstract | 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. |
| description.department | chinese acad sci, inst phys, beijing 100080, peoples r china. chinese acad sci, ctr condensed matter phys, beijing 100080, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china.;ouyang, zw (reprint author), chinese acad sci, inst phys, pob 603, beijing 100080, peoples r china;zwouyang@aphy.iphy.ac.cn |
| Keyword | Itinerant Electron System Laves Phase Hf0.8ta0.2fe2 Transport-properties Ferromagnetic Transition Laves Phases Hf1-xtaxfe2 Alloys Hf |
| URL | 查看原文 |
| WOS ID | WOS:000221158200010 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/35507 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation 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. |
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