Self-Assembly of CoPt Magnetic Nanoparticle Arrays and its Underlying Forces
文献类型：期刊论文
| 作者 | Bian, Baoru3; Chen, Guoxin3; Zheng, Qiang3; Du, Juan3; Lu, Huanming3; Liu, J. Ping1; Hu, Yong2; Zhang, Zhidong4 |
| 刊名 | SMALL
 |
| 出版日期 | 2018-08-23 |
| 卷号 | 14期号:34页码:8 |
| 关键词 | CoPt nanoparticle superlattice driving force in situ TEM self-assembly |
| ISSN号 | 1613-6810 |
| DOI | 10.1002/smll.201801184 |
| 通讯作者 | Du, Juan(dujuan@nimte.ac.cn) ; Lu, Huanming(hmlu@nimte.ac.cn) ; Hu, Yong(huyong@mail.neu.edu.cn) |
| 英文摘要 | Nanoparticles covered with surfactants are often used to study particle motion patterns and self-assembly processes in solutions. Surfactants have influence on the interparticle interactions and therefore on the particle motion tracks and final patterns. In this study, CoPt nanoparticles are synthesized in aqueous solution without any surfactant. In situ transmission electron microscopy observation is performed to monitor the self-assemble process. Two types of magnetic nanoparticle superlattice arrays are formed: hexagonal equal distance superlattice arrays when particle size is 3 nm, and tight unequal distance superlattice arrays when particle size is 4.5 nm. It is interesting to observe that two small arrays merge into a large one through rotational and translational movements. A Monte Carlo simulation is carried out which successfully restores the whole process. It is identified that the underlying forces are van der Waals and magnetic dipolar interactions. The latter is responsible for orientation of each particle during the whole process. This investigation leads to a better understanding of the formation mechanism of magnetic nanoparticle superlattice arrays. |
| 资助项目 | National Natural Science Foundation of China[51771219] ; National Natural Science Foundation of China[51771220] ; National Natural Science Foundation of China[51771095] ; National Natural Science Foundation of China[51590883] ; National Natural Science Foundation of China[51422106] ; Natural Science Foundation of Ningbo[2017A610030] ; China Scholarship Council[201606085010] |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000442501500004 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Ningbo ; China Scholarship Council |
| 源URL | [http://ir.imr.ac.cn/handle/321006/129073]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Du, Juan; Lu, Huanming; Hu, Yong |
| 作者单位 | 1.Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA 2.Northeastern Univ, Coll Sci, Shenyang 110819, Liaoning, Peoples R China 3.Chinese Acad Sci, Key Lab Magnet Mat & Devices, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Zhejiang, Peoples R China 4.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110011, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bian, Baoru,Chen, Guoxin,Zheng, Qiang,et al. Self-Assembly of CoPt Magnetic Nanoparticle Arrays and its Underlying Forces[J]. SMALL,2018,14(34):8. |
| APA | Bian, Baoru.,Chen, Guoxin.,Zheng, Qiang.,Du, Juan.,Lu, Huanming.,...&Zhang, Zhidong.(2018).Self-Assembly of CoPt Magnetic Nanoparticle Arrays and its Underlying Forces.SMALL,14(34),8. |
| MLA | Bian, Baoru,et al."Self-Assembly of CoPt Magnetic Nanoparticle Arrays and its Underlying Forces".SMALL 14.34(2018):8. |
入库方式： OAI收割
来源：金属研究所
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