| Magnetic anisotropy and magnetization reversal of ultrathin iron films with in-plane magnetization on Si（111） substrates |
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| 引用本文： | 刘郝亮,何为,杜海峰,房亚鹏,吴琼,张向群,杨海涛,成昭华.Magnetic anisotropy and magnetization reversal of ultrathin iron films with in-plane magnetization on Si（111） substrates[J].中国物理 B,2012(7):5-10. |
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| 作者姓名： | 刘郝亮 何为 杜海峰 房亚鹏 吴琼 张向群 杨海涛 成昭华 |
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| 作者单位： | State Key Laboratory of Magnetism and Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China |
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| 基金项目： | Project supported by the National Basic Resea.rch Program of China （Grant Nos. 2009CB929201, 2010CB934202, and 2011CB921801） and the National Natural Science Foundation of China （Grant Nos. 50931006, 11034004, and 51021061）. |
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| 摘 要： | The magnetic anisotropy and magnetization reversal of single crystal Fe films with thickness of 45 monolayer (ML) grown on Si(111) have been investigated by ferromagnetic resonance (FMR) and vibrating sample magnetometer (VSM). Owing to the significant modification of the energy surface in remanent state by slight misorientation from (111) plane and a uniaxial magnetic anisotropy, the azimuthal angular dependence of in-plane resonance field shows a six-fold symmetry with a weak uniaxial contribution, while the remanence of hysteresis loops displays a two-fold one. The competition between the first and second magnetocrystalline anisotropies may result in the switching of in-plane easy axis of the system. Combining the FMR and VSM measurements, the magnetization reversal mechanism has also been determined.
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| 关 键 词： | magnetic anisotropy magnetization reversal ultrathin film |
Magnetic anisotropy and magnetization reversal of ultrathin iron films with in-plane magnetization on Si（111） substrates |
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| Liu Hao-Liang,He Wei Fang Ya-Peng,Wu Qiong,Du Hai-Feng,Zhang Xiang-qun,Yang Hai-Tao,Cheng Zhao-Hua.Magnetic anisotropy and magnetization reversal of ultrathin iron films with in-plane magnetization on Si（111） substrates[J].Chinese Physics B,2012(7):5-10. |
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| Authors: | Liu Hao-Liang He Wei Fang Ya-Peng Wu Qiong Du Hai-Feng Zhang Xiang-qun Yang Hai-Tao Cheng Zhao-Hua |
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| Affiliation: | State Key Laboratory of Magnetism and Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | The magnetic anisotropy and magnetization reversal of single crystal Fe films with thickness of 45 monolayer (ML) grown on Si(111) have been investigated by ferromagnetic resonance (FMR) and vibrating sample magnetometer (VSM). Owing to the significant modification of the energy surface in remanent state by slight misorientation from (111) plane and a uniaxial magnetic anisotropy, the azimuthal angular dependence of in-plane resonance field shows a six-fold symmetry with a weak uniaxial contribution, while the remanence of hysteresis loops displays a two-fold one. The competition between the first and second magnetocrystalline anisotropies may result in the switching of in-plane easy axis of the system. Combining the FMR and VSM measurements, the magnetization reversal mechanism has also been determined. |
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| Keywords: | magnetic anisotropy magnetization reversal ultrathin film |
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