Coercivity variation in Ni80Fe20 ferromagnetic nanowires

被引：10
|
作者：
Goolaup, S [1 ]
Singh, N [1 ]
Adeyeye, AO [1 ]
机构：
[1] Natl Univ Singapore, Informat Storage Mat Lab, Dept Elect & Comp Engn, Singapore 117576, Singapore
来源：
IEEE TRANSACTIONS ON NANOTECHNOLOGY | 2005年 / 4卷 / 05期
关键词：
magnetic anisotropy; magnetic films; magnetic hysteresis; nanotechnology;
D O I：
10.1109/TNANO.2005.851405
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Deep ultraviolet lithography was used to fabricate highly ordered 80-mn-thick Ni80Fe20 nanowire arrays over a large area (4 x 4 mm(2)). The magnetic properties of the wire array display a marked increase in both the coercivity and switching field due to magnetic shape anisotropy compared with the bulk film. The angular variation of the coercivity for nanowire arrays has been investigated in order to probe the magnetization reversal process. Our systematic study of the coercivity variation, which is also aided by theoretical modeling, reveals that the curling mode of rotation is the dominant reversal mechanism.
引用
收藏
页码：523 / 526
页数：4
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