An approach for researching uniaxial anisotropy magnet: Rotational magnetization

被引:21
作者
Fan, Xiaolong [1 ]
Xue, Desheng [1 ]
Jiang, Changjun [1 ]
Gong, Yu [1 ]
Li, Jinyun [1 ]
机构
[1] Lanzhou Univ, MOE, Key Lab Magnetism & Magnet Mat, Lanzhou 730000, Peoples R China
基金
中国国家自然科学基金;
关键词
D O I
10.1063/1.2821729
中图分类号
O59 [应用物理学];
学科分类号
摘要
In this study, rotational magnetization curves are used to investigate the anisotropy and the rotational magnetization process of uniaxial magnets. We measured the projection of magnetization as a function of angle between the magnetic field and the reference axis. The information about anisotropy, such as the directions of the easy axis and hard axis, as well as the anisotropy field H-k((i)), is acquired. Simultaneously, the rotational magnetization reversal processes are derived. The Co and Fe28Co61Zr11 magnetic thin films with induced in-plane uniaxial anisotropy have been researched. We found that the rotational magnetization reversal process of the Co film is a coherent rotation. However, the Fe28Co61Zr11 film shows the similar behavior, except for a noncoherent rotation appearing when a small field parallels the hard axis. (c) 2007 American Institute of Physics.
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页数:8
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