Electrical and magnetic properties of epsilon-Fe3N nanoparticles synthesized by chemical vapor condensation process
文献类型：期刊论文
| 作者 | D. Li ; Z. D. Zhang ; W. F. Li ; W. J. Feng ; C. J. Choi ; B. K. Kim |
| 刊名 | Journal of Magnetism and Magnetic Materials
 |
| 出版日期 | 2006 |
| 卷号 | 307期号:1页码:128-133 |
| 关键词 | Fe3N nanoparticles chemical vapor condensation magnetic properties electrical properties ultrafine iron particles ferromagnetic particles verwey transition fe nanoparticles spin disorder fe3o4 oxidation systems |
| ISSN号 | 0304-8853 |
| 中文摘要 | epsilon-Fe3N nanoparticles synthesized by chemical vapor condensation (CVC) are covered with shells of disordered Fe3O4 phase, as observed by a transmission electron microscopy. The zero-field cooling and field cooling temperature dependence of magnetization, ac susceptibility as a function of frequency, magnetic hysteresis loops, and the temperature dependence of resistivity of the epsilon-Fe3N nanoparticles are systematically studied. The results indicate the existence of complex magnetic properties, such as superparamagnetic behavior, exchange bias, magnetic dipole interaction, and the possible coexistence of ferromagnetic and spin-glass-like states and/or disordered surface spins of the shells at low temperatures. The temperature dependence of resistivity p(T) for compacted epsilon-Fe3N nanoparticles in a temperature range of 110 K < T < 300 K can be well described by the mechanism of fluctuation-induced tunneling conduction, while that below 110 K can be ascribed to conducting electrons scattered by localized magnetic moments and impurity as well as the influence of freezing of spin-glass-like moments and/or disordered surface spins of the shells. (c) 2006 Elsevier B.V. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/34295]  |
| 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 | D. Li,Z. D. Zhang,W. F. Li,et al. Electrical and magnetic properties of epsilon-Fe3N nanoparticles synthesized by chemical vapor condensation process[J]. Journal of Magnetism and Magnetic Materials,2006,307(1):128-133. |
| APA | D. Li,Z. D. Zhang,W. F. Li,W. J. Feng,C. J. Choi,&B. K. Kim.(2006).Electrical and magnetic properties of epsilon-Fe3N nanoparticles synthesized by chemical vapor condensation process.Journal of Magnetism and Magnetic Materials,307(1),128-133. |
| MLA | D. Li,et al."Electrical and magnetic properties of epsilon-Fe3N nanoparticles synthesized by chemical vapor condensation process".Journal of Magnetism and Magnetic Materials 307.1(2006):128-133. |
入库方式： OAI收割
来源：金属研究所
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