| 单晶Ni纳米线阵列的制备与磁性能 |
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| 引用本文： | 于翠艳,于彦龙,孙宏宇,李伟,许涛,张湘义.单晶Ni纳米线阵列的制备与磁性能[J].高等学校化学学报,2007,28(12):2239-2241. |
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| 作者姓名： | 于翠艳 于彦龙 孙宏宇 李伟 许涛 张湘义 |
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| 作者单位： | 燕山大学亚稳材料制备技术与科学国家重点实验室,秦皇岛,066004;大庆石油学院应用技术学院,秦皇岛,066004;大庆石油学院应用技术学院,秦皇岛,066004;燕山大学亚稳材料制备技术与科学国家重点实验室,秦皇岛,066004 |
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| 基金项目： | 国家自然科学基金
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河北省自然科学基金 |
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| 摘 要： | 采用恒电流沉积方法, 在多孔阳极氧化铝(AAO)模板中制备出了具有单晶结构的Ni纳米线阵列. 采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)和X射线衍射(XRD)技术对制备的Ni纳米线阵列的形貌及结构进行了表征. 利用振动样品磁强计(VSM)对单晶Ni纳米线阵列的磁性能进行了研究. 结果表明, 单晶镍纳米线阵列的易磁化方向为纳米线轴向, 并且与多晶纳米线相比显示出了更高的矫顽力. 直径为30 nm的纳米线具有较高的矫顽力(8.236×104 A/m)和较高的剩磁比(Mr＝0.94Ms).
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| 关 键 词： | AAO模板 Ni纳米线阵列 单晶 磁性能 |
| 文章编号： | 0251-0790（2007）12-2239-03 |
| 收稿时间： | 2007-05-26 |
| 修稿时间： | 2007年5月26日 |
Preparation and Magnetic Properties of Single-crystal Ni Nanowire Arrays |
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| YU Cui-Yan,YU Yan-Long,SUN Hong-Yu,LI Wei,XU Tao,ZHANG Xiang-Yi.Preparation and Magnetic Properties of Single-crystal Ni Nanowire Arrays[J].Chemical Research In Chinese Universities,2007,28(12):2239-2241. |
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| Authors: | YU Cui-Yan YU Yan-Long SUN Hong-Yu LI Wei XU Tao ZHANG Xiang-Yi |
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| Institution: | State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China;;Department of Applied Technology, Daqing Petroleum Institute, Qinhuangdao 066004, China |
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| Abstract: | Single-crystal Ni nanowire arrays were prepared by employing the porous AAO template by using the electrodeposition technique at a constant current of 2.0 mA/cm2.The morphology and microstructure of Ni nanowire arrays were studied by SEM,TEM and XRD techniques.The magnetic properties of the single-crystal Ni nanowire arrays were investigated by VSM.The results reveal that the single-crystal Ni nanowire arrays show a perpendicular magnetic anistory and have a preferential magnetic orientation along the wire axis.The magnetic properties of the single-crystal Ni nanowire arrays are better than those of polycrystal nanowire arrays. |
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| Keywords: | Anodic aluminum oxides template Ni nanowire arrays Single-crystal Magnetic properties |
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