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| 单畴Ni球观测及NicoreNiOshell的铁磁/反铁磁耦合研究 | |
| 引用本文： | 刘先松,章成文,周圣强,尹萍,Udi Meridor,Aviad Frydman,Aharon Gedanken.单畴Ni球观测及NicoreNiOshell的铁磁/反铁磁耦合研究[J].高压物理学报,2006,20(2):194-201. |
| 作者姓名： | 刘先松 章成文 周圣强 尹萍 Udi Meridor Aviad Frydman Aharon Gedanken |
| 作者单位： | 1. 安徽省信息材料与器件重点实验室,安徽大学物理与材料学院,安徽,合肥,230039 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 |
| 基金项目： | ThisresearchissupportedbyanEuropeanCommunitygrantfortheNANOBAT(ProjectNo.NNE5-2001-00042)andtheKeyProgramoftheEducationDepartmentofAnhuiProvinceunderGrantNo.2005KJ033ZD |
| 摘 要： | 使用微波辅助聚合方法制备了单分散单畴Ni纳米球，由MFM发现，尺度分布在100～180 nm的Ni球的一个相关特征是条型磁畴结构。用XRD、TEM、XPS以及EDAX测量了由Ni球进一步制备的NicoreNiOshell高度球型纳米结构。用VSM 和SQUID进一步讨论了其铁磁/反铁磁界面耦合效应，估算了交换耦合场与粒子尺寸的关系。 |
| 关 键 词： | 单分散单畴Ni纳米颗粒 NicoreNiOshell结构 铁磁/反铁磁界面耦合 |
| 文章编号： | 1000-5773（2006）02-0194-08 |
| 收稿时间： | 2004-11-18 |
| 修稿时间： | 2005-01-13 |
Single-Domain Nanosphere Observation and Ferromagnetic/Antiferromagnetic Coupling of Ni/NiO |
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| LIU Xian-Song,ZHANG Cheng-Wen,ZHOU Sheng-Qiang,YIN Ping,Udi Meridor,Aviad Frydman,Aharon Gedanken.Single-Domain Nanosphere Observation and Ferromagnetic/Antiferromagnetic Coupling of Ni/NiO[J].Chinese Journal of High Pressure Physics,2006,20(2):194-201. | |
| Authors: | LIU Xian-Song ZHANG Cheng-Wen ZHOU Sheng-Qiang YIN Ping Udi Meridor Aviad Frydman Aharon Gedanken |
| Institution: | 1. Anhui Key Laboratory of Information Materials &; Devices, School of Physics &; Materials Science, Anhui University, Hefei 230093, China;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 |
| Abstract: | Magnetic force microscopy(MFM) measurements were performed on monodispersed single-domain nickel nanospheres fabricated by the microwave-assisted(MW) polyol method.As found by MFM,a relevant characteristic of these spheres with a size distribution in the 100~180 nm range is the magnetic stripe domain structure.The obtained highly globular nanostructures of Ni_(core)NiO_(shell) were measured by XRD,TEM,XPS,and EDAX.The ferromagnet/antiferromagnet interface coupling is discussed with the results of VSM and SQUID.The relation of the exchange-coupling field with particles sizes is evaluated. |
| Keywords: | monodispersed single-domain nickel nanospheres Ni_(core)NiO_(shell) ferromagnet/antiferromagnet interface coupling |
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