首页 | 本学科首页   官方微博 | 高级检索  
     

Ni纳米线阵列的铁磁共振研究
引用本文:袁淑娟,周仕明,鹿牧. Ni纳米线阵列的铁磁共振研究[J]. 物理学报, 2006, 55(2): 891-896
作者姓名:袁淑娟  周仕明  鹿牧
作者单位:(1)复旦大学应用表面国家重点实验室,复旦大学物理系,上海 200433; (2)南京大学物理系,固体微结构物理国家重点实验室,南京 210093; (3)上海大学物理系,上海 200444
基金项目:中国科学院资助项目;上海市重点学科建设项目
摘    要:通过改变氧化电压和酸性溶液制备了孔径、孔隙率不同的阳极氧化铝模板,用电沉积方法在模板中制备了Ni有序纳米线阵列,并用铁磁共振技术和振动样品磁强计对其进行了研究.研究表明Ni纳米线阵列存在着较强的偶极相互作用,偶极相互作用与纳米线的形状各向异性之间的竞争决定了纳米线的易磁化方向.随着纳米线阵列密度的增加,线间的偶极相互作用增加,使得纳米线易磁化方向从平行于纳米线方向渐趋向于垂直于纳米线的平面内.关键词:纳米线铁磁共振偶极相互作用氧化铝模板

关 键 词:纳米线  铁磁共振  偶极相互作用  氧化铝模板
文章编号:1000-3290/2006/55(02)/0891-06
收稿时间:2005-05-17
修稿时间:2005-06-08

Ferromagnetic resonance study of Ni nanowire arrays
Yuan Shu-Juan,Zhou Shi-Ming,Lu Mu. Ferromagnetic resonance study of Ni nanowire arrays[J]. Acta Physica Sinica, 2006, 55(2): 891-896
Authors:Yuan Shu-Juan  Zhou Shi-Ming  Lu Mu
Affiliation:1.Department of Physics, Shanghai University, Shanghai 200444, China;2.State Key Laboratory of Applied Surface and Department of Physics, Fudan University, Shanghai 200433, China;3.Department of Physics and State Key Laboratory of Solid State Microstructures, Nanjing University, Nanfing 210093, China
Abstract:Arrays of Ni nanowires were electrodeposited into anodic alumina oxide templates with various pore diameters and porosity. The magnetization behavior of the Ni nanowire arrays was investigated with ferromagnetic resonance techniques and the vibrating sample magnetometer. Both ferromagnetic resonance spectra and hysteresis loops show that there is a strong dipolar interaction between the nanowires. The easy axis of magnetization is mainly a result of a competition of shape anisotropy and dipolar interaction. With increasing array density, the dipolar interactions increase and the easy axis is tuned from parallel to perpendicular to the wire axis.
Keywords:nanowires   ferromagnetic resonance   dipolar interactions   anodic alumina template
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《物理学报》浏览原始摘要信息
点击此处可从《物理学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号