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| 单分散Ni球制备及Ni／NiO的磁性研究 | |
| 引用本文： | 刘先松 周圣强 黄凯 Udi Meridor Aviad Frydman Aharon Gedanken.单分散Ni球制备及Ni／NiO的磁性研究[J].稀有金属材料与工程,2006,35(9):1457-1460. |
| 作者姓名： | 刘先松 周圣强 黄凯 Udi Meridor Aviad Frydman Aharon Gedanken |
| 作者单位： | 1. 安徽大学物理与材料学院,安徽,合肥,230093 2. The Physics Department and the Minerva Center, Bar-Ilan University, Ramat Gan 52900, Israel 3. Department of Chemistry, Bar-Ilan University, Ramat-Gan 52900, Israel |
| 摘 要： | 使用微波辅助Poly方法制备了直径范围在100nm～180nm单分散的Ni球，用磁力显微镜（MFM）测其磁结构。进一步对Ni球表面氧化获得了高度球化的NicoreNiOshell结构，采用XRD，TEM，XPS和EDAX对其进行了测量分析，并用VSM和SQUID进一步讨论了铁磁／反铁磁的界面耦合效应。同时，估算了磁性交换偏置耦合场与颗粒尺寸的关系。 |
| 关 键 词： | 单分散Ni球 界面耦合 磁性 |
| 文章编号： | 1002-185X(2006)09-1457-04 |
| 收稿时间： | 2005-08-04 |
| 修稿时间： | 2005年8月4日 |
Monodispersed Ni Sphere Observation and Ni/NiO Magnetic Properties |
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| Liu Xiansong,Zhou Shengqiang,Huang Kai,Udi Meridor,Aviad Frydman,Aharon Gedanken.Monodispersed Ni Sphere Observation and Ni/NiO Magnetic Properties[J].Rare Metal Materials and Engineering,2006,35(9):1457-1460. | |
| Authors: | Liu Xiansong Zhou Shengqiang Huang Kai Udi Meridor Aviad Frydman Aharon Gedanken |
| Abstract: | Monodispersed nickel spheres with diameters ranging from 100 nm to 180 nm were prepared by microwave-assisted(MW)polyol method.The magnetic stripe domain structure in these nickel spheres was measured by magnetic force microscopy(MFM).Furthermore,in this work we reported the formation of core-shell structures of highly globular NicoreNiOshell which were synthesized from the Ni spheres,and the magnetic properties of the core-shell structures have been investigated. |
| Keywords: | monodispersed single-domain nickel spheres interface coupling magnetism |
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