Exceeding natural resonance frequency limit of monodisperse Fe3O4 nanoparticles via superparamagnetic relaxation
文献类型：期刊论文
| 作者 | Song, NN ; Yang, HT ; Liu, HL ; Ren, X ; Ding, HF ; Zhang, XQ ; Cheng, ZH |
| 刊名 | SCIENTIFIC REPORTS
 |
| 出版日期 | 2013 |
| 卷号 | 3 |
| ISSN号 | 2045-2322 |
| 通讯作者 | Cheng, ZH (reprint author), Chinese Acad Sci, State Key Lab Magnetism, Inst Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Magnetic nanoparticles have attracted much research interest in the past decades due to their potential applications in microwave devices. Here, we adopted a novel technique to tune cut-off frequency exceeding the natural resonance frequency limit of monodisperse Fe3O4 nanoparticles via superparamagnetic relaxation. We observed that the cut-off frequency can be enhanced from 5.3 GHz for Fe3O4 to 6.9 GHz for Fe3O4@SiO2 core-shell structure superparamagnetic nanoparticles, which are much higher than the natural resonance frequency of 1.3 GHz for Fe3O4 bulk material. This finding not only provides us a new approach to enhance the resonance frequency beyond the Snoek's limit, but also extend the application for superparamagnetic nanoparticles to microwave devices. |
| 资助信息 | National Basic Research Program of China (973 program) [2012CB933102, 2011CB921801, 2010CB93420]; National Natural Sciences Foundation of China [11174351, 11034004, 51021061] |
| 语种 | 英语 |
| 公开日期 | 2014-01-16 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/56980]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Song, NN,Yang, HT,Liu, HL,et al. Exceeding natural resonance frequency limit of monodisperse Fe3O4 nanoparticles via superparamagnetic relaxation[J]. SCIENTIFIC REPORTS,2013,3. |
| APA | Song, NN.,Yang, HT.,Liu, HL.,Ren, X.,Ding, HF.,...&Cheng, ZH.(2013).Exceeding natural resonance frequency limit of monodisperse Fe3O4 nanoparticles via superparamagnetic relaxation.SCIENTIFIC REPORTS,3. |
| MLA | Song, NN,et al."Exceeding natural resonance frequency limit of monodisperse Fe3O4 nanoparticles via superparamagnetic relaxation".SCIENTIFIC REPORTS 3(2013). |
入库方式： OAI收割
来源：物理研究所
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