Reduction of ordering temperature of self-assembled fept nanoparticles by addition of au and ag
文献类型：期刊论文
| 作者 | Gao, Y.; Zhang, X. W.; Qu, S.; You, J. B.; Yin, Z. G.; Chen, N. F. |
| 刊名 | Journal of nanoscience and nanotechnology
 |
| 出版日期 | 2011-12-01 |
| 卷号 | 11期号:12页码:10548-10552 |
| 关键词 | Fept nanoparticles Ordering temperature Self-assembly Magnetic recording |
| ISSN号 | 1533-4880 |
| DOI | 10.1166/jnn.2011.4006 |
| 通讯作者 | Zhang, x. w.() |
| 英文摘要 | The [fept](94)au-6 and [fept](90)ag-10 nanoparticle arrays were synthesized on si substrates by a reverse micellar method, combined with plasma treatment and in-situ deposition of a sio2 overlayer, and the post annealing step was performed to drive the face-centered cubic to tetragonal phase transition. these fept nanoparticles exhibit a quasi-hexagonal order with tailored inter-particle spacing and particle size. the effects of the ag and au on the structural and magnetic properties of fept were investigated. the results indicate that both au and ag additives can remarkably enhance the coercivity and reduce the ordering temperature, however, the optimum composition is different for them. the optimum composition is determined to be [fept](94)au-6 and [fept](90)ag-10, respectively, for which the ordering temperature of fept nanoparticles is reduced by similar to 100 degrees c. after 600 degrees c annealing, the [fept](94)au-6 and [fept](90)ag-10 nanoparticles are totally ferromagnetic with apparent larger coercivities of similar to 7.0 koe, which is about 3.8 koe larger than that of the pure fept nanoparticles. the mechanism of the chemical ordering acceleration may be attributed to the defects and strains caused by the au/ag additives. |
| WOS关键词 | MAGNETIC-PROPERTIES ; FILMS |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000299586100047 |
| 出版者 | AMER SCIENTIFIC PUBLISHERS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2428383 |
| 专题 | 半导体研究所 |
| 通讯作者 | Zhang, X. W. |
| 作者单位 | Chinese Acad Sci, Key Lab Semicond Mat Sci, Inst Semicond, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Y.,Zhang, X. W.,Qu, S.,et al. Reduction of ordering temperature of self-assembled fept nanoparticles by addition of au and ag[J]. Journal of nanoscience and nanotechnology,2011,11(12):10548-10552. |
| APA | Gao, Y.,Zhang, X. W.,Qu, S.,You, J. B.,Yin, Z. G.,&Chen, N. F..(2011).Reduction of ordering temperature of self-assembled fept nanoparticles by addition of au and ag.Journal of nanoscience and nanotechnology,11(12),10548-10552. |
| MLA | Gao, Y.,et al."Reduction of ordering temperature of self-assembled fept nanoparticles by addition of au and ag".Journal of nanoscience and nanotechnology 11.12(2011):10548-10552. |
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来源：半导体研究所
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