Fabrication and magnetic properties of ultrathin Fe nanowire arrays

被引：124

作者：

Zhang, XY ^{[1
]}

Wen, GH ^{[1
]}

Chan, YF ^{[1
]}

Zheng, RK ^{[1
]}

Zhang, XX ^{[1
]}

Wang, N ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Inst Nano Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 16期

关键词：

D O I：

10.1063/1.1621459

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ultrathin Fe nanowire (about 5 nm in diameter) arrays have been fabricated by electrodeposition using anodic porous alumina templates. These ultrathin nanowires exhibited uniaxial anisotropy and a quite large coercivity (4190 Oe) at 5 K. In addition, the field needed to saturate the magnetization, when the field was applied perpendicularly to the easy axis, was much larger than the shape anisotropy field (2piM(S)). This saturation field increased with decreasing temperature. We believed that this enhanced saturation field was mainly due to the contribution of the surface spins. (C) 2003 American Institute of Physics.

引用

页码：3341 / 3343

页数：3

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