Angular dependence of magnetization reversal process in exchange biased epitaxial MnPd/Fe bilayers
Angular dependence of magnetization reversal process in exchange biased epitaxial MnPd/Fe bilayers
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DOI：
10.1063/1.3340449
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发表时间：
2010-04
影响因子：
3.2
通讯作者：
Q. Zhan;K. Krishnan
中科院分区：
文献类型：
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作者：
Q. Zhan;K. Krishnan
我们利用纵向和横向磁光Kerr效应研究了在MgO（001）上生长的外延MnPd/Fe双分子层磁化反转的角度依赖性。当电场方向从平行于偏压方向到垂直于偏压方向变化时，观察到方形环路、不对称形状环路和双位移环路。此外，考虑铁磁层中诱导的单轴各向异性的影响，采用改进的有效场模型来解释磁开关场的复杂角依赖关系。对于不同厚度的试样，拟合结果与实验结果吻合较好。
We investigated the angular dependence of magnetization reversal in epitaxial MnPd/Fe bilayers grown on MgO(001) using combined longitudinal and transverse magneto-optical Kerr effect. Square loops, asymmetrically shaped loops, and double-shifted loops were observed as the field orientation was varied from parallel to perpendicular to the bias direction. Additionally, including the effect of an induced uniaxial anisotropy in the ferromagnetic layers, an improved effective field model was used to interpret the complex angular dependence of the magnetic switching fields. The fitting shows good agreement with the experimental results for the samples with different thicknesses.