| Exchange bias effect in NiO/NiFe2O4 nanocomposites | |
| Gong, W. J.; Liu, W.1; Li, D.; Guo, S.; Liu, X. H.; Feng, J. N.; Li, B.; Zhao, X. G.; Zhang, Z. D. | |
| 通讯作者 | Liu, W.(wliu@imr.ac.cn) |
| 2011-04-01 | |
| 发表期刊 | JOURNAL OF APPLIED PHYSICS
 |
| ISSN | 0021-8979 |
| 卷号 | 109期号:7页码:3 |
| 摘要 | A series of (100-x)NiO/(x)NiFe2O4 nanocomposites (x 0, 2.5, 5, 8.3, 12.5, 25) synthesized by a chemical coprecipitation method have been investigated. The exchange bias field H-E of the nanocomposites reaches a maximum at x = 2.5, and then decreases with increasing x. The decrease of H-E is attributed to the formation of isolated ferrimagnetic NiFe2O4 clusters, which is confirmed by observation with the use of high resolution transmission electron microscopy. The temperature dependence of H-E and the coercivity H-C for pure NiO is different from those with other samples, which is due to the exchange coupling between the uncompensated antiferromagnetic core and disordered surface shell of NiO nanoparticles. (C) 2011 American Institute of Physics. [doi:10.1063/1.3544505] |
| 资助者 | National Basic Research Program of China ; Ministry of Science and Technology of China ; National Nature Science Foundation of China |
| DOI | 10.1063/1.3544505 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Basic Research Program of China[2010CB934603] ; Ministry of Science and Technology of China ; National Nature Science Foundation of China[50931006] ; National Nature Science Foundation of China[50971123] |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| WOS记录号 | WOS:000289952100242 |
| 出版者 | AMER INST PHYSICS |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/106273 |
| 专题 | 中国科学院金属研究所 |
| 通讯作者 | Liu, W. |
| 作者单位 | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Int Ctr Mat Phys, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gong, W. J.,Liu, W.,Li, D.,et al. Exchange bias effect in NiO/NiFe2O4 nanocomposites[J]. JOURNAL OF APPLIED PHYSICS,2011,109(7):3. |
| APA | Gong, W. J..,Liu, W..,Li, D..,Guo, S..,Liu, X. H..,...&Zhang, Z. D..(2011).Exchange bias effect in NiO/NiFe2O4 nanocomposites.JOURNAL OF APPLIED PHYSICS,109(7),3. |
| MLA | Gong, W. J.,et al."Exchange bias effect in NiO/NiFe2O4 nanocomposites".JOURNAL OF APPLIED PHYSICS 109.7(2011):3. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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