Study of magnetization reversal and anisotropy of single crystalline ultrathin Fe/MgO (001) film by magneto-optic Kerr effect

被引：8
|
作者：
Zhang, Miao-Ling [1 ]
Ye, Jun [1 ]
Liu, Rui [1 ]
Mi, Shu [1 ]
Xie, Yong [1 ]
Liu, Hao-Liang [2 ]
Van Haesendonck, Chris [2 ]
Chen, Zi-Yu [1 ]
机构：
[1] Beihang Univ, Minist Educ, Key Lab Micronano Measurement Manipulat & Phys, Beijing 100191, Peoples R China
[2] Katholieke Univ Leuven, Solid State Phys & Magnetism Sect, Celestijnenlaan 200 D, BE-3001 Leuven, Belgium
来源：
CHINESE PHYSICS B | 2016年 / 25卷 / 04期
基金：
中国国家自然科学基金; 高等学校博士学科点专项科研基金;
关键词：
magnetization reversal process; magneto-optic Kerr effect; magnetic anisotropy; THIN-FILMS; MOKE; SURFACE; FIELD; FE;
D O I：
10.1088/1674-1056/25/4/047503
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The magnetization reversal process of Fe/MgO (001) thin film is investigated by combining transverse and longitudinal hysteresis loops. Owing to the competition between domain wall pinning energy and weak uniaxial magnetic anisotropy, the typical magnetization reversal process of Fe ultrathin film can take place via either an "l-jump" process near the easy axis, or a "2-jump" process near the hard axis, depending on the applied field orientation. Besides, the hysteresis loop presents strong asymmetry resulting from the variation of the detected light intensity due to the quadratic magneto-optic effect. Furthermore, we modify the detectable light intensity formula and simulate the hysteresis loops of the Kerr signal. The results show that they are in good agreement with the experimental data.
引用
收藏
页数：6
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