A magnetic force microscopy study of the magnetic reversal of a single Fe nanowire

被引：33

作者：

Wang, T. ^{[1
,2
]}

Wang, Y. ^{[2
]}

Fu, Y. ^{[1
]}

Hasegawa, T. ^{[1
]}

Li, F. S. ^{[2
]}

Saito, H. ^{[1
]}

Ishio, S. ^{[1
]}

机构：

[1] Akita Univ, VBL, Akita 0108502, Japan

[2] Lanzhou Univ, Inst Appl Magnet, Minist Educ, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China

来源：

NANOTECHNOLOGY | 2009年 / 20卷 / 10期

关键词：

SWITCHING FIELD; NUCLEATION; ARRAYS; CO; MAGNETORESISTANCE;

D O I：

10.1088/0957-4484/20/10/105707

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The magnetization reversal properties of a single 60 nm diameter Fe nanowire were investigated with an in-field magnetic force microscope (MFM). MFM images were observed in a successively decreasing applied field, at various angles between the applied field and the nanowire axis. The results show that the magnetization undergoes a sharp reversal at various angles. When the applied field deviates from the nanowire axis, before complete magnetization reversal, a coherent rotation of magnetic moments inside the nanowire and a stable vortex state at the end of the nanowire are exhibited. The angle dependence of the switching field can be closely described by a curling model, despite the fact the magnetization reversal process is not identical to this model.

引用

页数：5

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