Magnetic properties of fept nanoparticles prepared by a micellar method
文献类型：期刊论文
| 作者 | Gao, Y.; Zhang, X. W.; Yin, Z. G.; Qu, S.; You, J. B.; Chen, N. F. |
| 刊名 | Nanoscale research letters
 |
| 出版日期 | 2010 |
| 卷号 | 5期号:1页码:1-6 |
| 关键词 | Fept nanoparticles Reverse micelles Self-assembly Interparticle exchange coupling Magnetic recording |
| ISSN号 | 1931-7573 |
| DOI | 10.1007/s11671-009-9433-4 |
| 通讯作者 | Zhang, x. w.(xwzhang@semi.ac.cn) |
| 英文摘要 | Fept nanoparticles with average size of 9 nm were synthesized using a diblock polymer micellar method combined with plasma treatment. to prevent from oxidation under ambient conditions, immediately after plasma treatment, the fept nanoparticle arrays were in situ transferred into the film-growth chamber where they were covered by an sio(2) overlayer. a nearly complete transformation of l1(0) fept was achieved for samples annealed at temperatures above 700 a degrees c. the well control on the fept stoichiometry and avoidance from surface oxidation largely enhanced the coercivity, and a value as high as 10 koe was obtained in this study. an evaluation of magnetic interactions was made using the so-called isothermal remanence (irm) and dc-demagnetization (dcd) remanence curves and kelly-henkel plots (delta m measurement). the delta m measurement reveals that the resultant fept nanoparticles exhibit a rather weak interparticle dipolar coupling, and the absence of interparticle exchange interaction suggests no significant particle agglomeration occurred during the post-annealing. additionally, a slight parallel magnetic anisotropy was also observed. the results indicate the micellar method has a high potential in preparing fept nanoparticle arrays used for ultrahigh density recording media. |
| WOS关键词 | ORDERED ARRAYS ; FILMS ; ANISOTROPY ; FUTURE ; LIMITS ; MEDIA |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS类目 | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000272916400001 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2428054 |
| 专题 | 半导体研究所 |
| 通讯作者 | Zhang, X. W. |
| 作者单位 | Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Y.,Zhang, X. W.,Yin, Z. G.,et al. Magnetic properties of fept nanoparticles prepared by a micellar method[J]. Nanoscale research letters,2010,5(1):1-6. |
| APA | Gao, Y.,Zhang, X. W.,Yin, Z. G.,Qu, S.,You, J. B.,&Chen, N. F..(2010).Magnetic properties of fept nanoparticles prepared by a micellar method.Nanoscale research letters,5(1),1-6. |
| MLA | Gao, Y.,et al."Magnetic properties of fept nanoparticles prepared by a micellar method".Nanoscale research letters 5.1(2010):1-6. |
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来源：半导体研究所
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